Updated on 2024/05/22

写真a

 
PANDEY Shyam sudhir
 
Scopus Paper Info  
Total Paper Count: 0  Total Citation Count: 0  h-index: 25

Citation count denotes the number of citations in papers published for a particular year.

Affiliation
Graduate School of Life Science and Systems Engineering Department of Biological Functions Engineering
Job
Professor
E-mail
メールアドレス
Laboratory
2-4 Hibikino, Wakamatsu-ku, Kitakyushu-shi, Fukuoka
Phone
+81-93-695-6230
Fax
+81-93-695-6000
Profile
Shyam S. Pandey completed PhD from, National Physical Laboratory, New Delhi, India in 1997 in the area of synthesis, characterization and application of organic conjugated polymers. He came to Japan as post-doctoral fellow in 1998. He worked as Fukuoka IST sponsored post-doctoral fellow in the Kyushu Institute of Technology from 1998-2001 in the area of photo-functional materials and devices. He was JSPS post-doctoral fellow from 2001-2003 (Soft-actuators & Artificial Muscles) and Knowledge Cluster invited researcher from 2003-2007 (Protein Biochips). He has received National Technology Award from National Research Development Corporation, Government of India in 2005 for the development of Glucose Biosensors, which is currently being manufactured and marketed. He worked in Kyushu Institute of Technology as assistant professor form 2009-2012 in the area of design and development of novel photofunctional materials for their application in the area of next generation solar cells. As an Associate Professor, he started his Organic Photofunctional Materials Devices research group in the same institute from April 2012-March and worked in the area of reserach and development of Next Generational Cells, Organic Electronic Devices and Bio-image sensors. Currently he is a Professor in the Green Electronics department of Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology. He has published more than 230 papers in international refereed journals and about 30 patents in India, Japan Europe and USA. His research interests deal with the Dye-Sensitized and Organic Solar Cells, Quantum Chemical Calculations, Organic Electronics & optoelectronics, Organic Conducting Polymers, Biosensors and Protein Biochips.
External link

Research Interests

  • Organic Electronics

  • Photo-Functional Materials

  • Dye-Sensitized Solar Cells

Research Areas

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Electron device and electronic equipment

  • Nanotechnology/Materials / Functional solid state chemistry

  • Nanotechnology/Materials / Structural materials and functional materials

  • Nanotechnology/Materials / Thin film/surface and interfacial physical properties

Post Graduate Education

  • 1987.03   Gorakhpur University, Gorakhpur   Graduate School, Division of Chemistry   Biophysical Chemistry   Master's Course   Completed   India

Degree

  • NPL New Delhi/Gorakhpur University  -  Ph.D.   1997.04

Biography in Kyutech

  • 2022.04
     

    Kyushu Institute of Technology   Graduate School of Life Science and Systems Engineering   Department of Biological Functions Engineering   Professor  

  • 2014.04
    -
    2022.03
     

    Kyushu Institute of Technology   Graduate School of Life Science and Systems Engineering   Department of Biological Functions Engineering   Associate Professor  

  • 2012.04
    -
    2014.03
     

    Kyushu Institute of Technology   Graduate School of Life Science and Systems Engineering   Department of Biological Functions and Engineering   Associate Professor  

  • 2009.04
    -
    2012.03
     

    Kyushu Institute of Technology   Graduate School of Life Science and Systems Engineering   Assistant Professor  

Biography before Kyutech

  • 2008.04 - 2009.03   Fukuoka Industry Science and Technology Foundation   Knowledge Cluster Iniative Researcher   Japan

  • 2003.10 - 2007.03   Kitakyushu Foundation for Advancement of Industry, Science and Technology   Invited Researcher   Japan

  • 2001.09 - 2003.09   Japan Society for the Promotion of Science   JSPS Fellow   Japan

  • 1998.04 - 2001.03   Fukuoka Industry Science and Technology Foundation   Specialized Researecher   Japan

Academic Society Memberships

  • 2016.12   International Conference on Computational Methods in Engineering and Health Sciences   Japan

  • 2016.07   9th International Conference on Materials for Advanced Technology (ICMAT-2017)   Singapore

Papers

  • High-Density, Nonvolatile, Flexible Multilevel Organic Memristor Using Multilayered Polymer Semiconductors Reviewed International journal

    Shubham Sharma*, Manish Pandey, Shuichi Nagamatsu, Hirofumi Tanaka, Kazuto Takashima Kazuto Takashima Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu, Kitakyushu 808-0196, Japan More by Kazuto Takashima , Masakazu Nakamura, and Shyam S. Pandey*

    ACS Applied Materials and Interfaces ( American Chemical Society )   16 ( 17 )   22282 - 22293   2024.04

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    Authorship:Last author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)

    Nonvolatile organic memristors have emerged as promising candidates for next-generation electronics, emphasizingthe need for vertical device fabrication to attain a high density. Herein, we present a comprehensive investigation of high-performance organic memristors, fabricated in crossbar architecture with PTB7/Al-AlOx-nanocluster/PTB7 embedded between Alelectrodes. PTB7 films were fabricated using the Unidirectional Floating Film Transfer Method, enabling independent uniform filmfabrication in the Layer-by-Layer (LbL) configuration without disturbing underlying films. We examined the charge transportmechanism of our memristors using the Hubbard model highlighting the role of Al-AlOx-nanoclusters in switching-on the devices,due to the accumulation of bipolarons in the semiconducting layer. By varying the number of LbL films in the device architecture,the resistance of resistive states was systematically altered, enabling the fabrication of novel multilevel memristors. These multileveldevices exhibited excellent performance metrics, including enhanced memory density, high on−off ratio (>108), remarkable memoryretention (>105 s), high endurance (87 on−off cycles), and rapid switching (∼100 ns). Furthermore, flexible memristors werefabricated, demonstrating consistent performance even under bending conditions, with a radius of 2.78 mm for >104 bending cycles.This study not only demonstrates the fundamental understanding of charge transport in organic memristors but also introducesnovel device architectures with significant implications for high-density flexible applications.

    DOI: 10.1021/acsami.4c03111

    DOI: 10.1021/acsami.4c03111

    Other Link: https://pubs.acs.org/doi/10.1021/acsami.4c03111

  • Photophysical Characterization and Biointeractions of NIR Squaraine Dyes for in Vitro and in Vivo Bioimaging Reviewed International journal

    Sai Kiran Mavileti, Galyna Bila, Valentyn Utka, Evgenia Bila, Tamaki Kato, Rostyslav Bilyy, Shyam S Pandey

    ACS Applied Biomaterials ( American Chemical Society )   7 ( 1 )   416 - 428   2023.12

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    Authorship:Last author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)

    The increasing demand for reliable near-infrared (NIR) probes exhibiting enduring fluorescence in living systems and facile compatibility with biomolecules such as peptides, antibodies or proteins is driven by the increasing use of NIR imaging in clinical diagnostics. To address this demand, a series of carboxy-functionalized unsymmetrical squaraine dyes (SQ-27, SQ-212, and SQ-215) along with non-carboxy-functionalized SQ-218 absorbing and emitting in the NIR wavelength range were designed and synthesized followed by photophysical characterization. This study focused on the impact of structural variations in the alkyl chain length, carboxy functionality positioning, and spacer chain length on dye aggregation and interaction with bovine serum albumin (BSA) as a model protein. In phosphate buffer (PB), the absorption intensity of the dyes markedly decreased accompanied by pronounced shoulders indicative of dye aggregation, and complete fluorescence quenching was seen in contrast to organic solvents. However, in the presence of BSA in PB, there was a enhancement in absorption intensity while regaining the fluorescence coupled with a remarkable increase in the intensity with increasing BSA concentrations, signifying the impact of dye–BSA interactions on preventing aggregation. Further analysis of Job’s plot unveiled a 2:1 interaction ratio between BSA and all dyes, while the binding studies revealed a robust binding affinity (Ka) in the order of 107/mol. SQ-212 and SQ-215 were further tested for their in vitro and in vivo imaging capabilities. Notably, SQ-212 demonstrated nonpermeability to cells, while SQ-215 exhibited easy penetration and prominent cytoplasmic localization in in vitro studies. Injection of the dyes into laboratory mice showcased their efficacy in visualization, displaying stable and intense fluorescence in tissues without toxicity, organ damage, or behavioral changes. Thus, SQ-212 and SQ-215 are promising candidates for imaging applications, holding potential for noninvasive cellular and diagnostic imaging as well as biomarker detection when coupled with specific vectors in living systems.

    DOI: https://doi.org/10.1021/acsabm.3c00997

    DOI: https://doi.org/10.1021/acsabm.3c00997

    Other Link: https://pubs.acs.org/doi/10.1021/acsabm.3c00997

  • Fabrication of solid-state dye-sensitized solar cells by controlled evaporation of solvents for creation of facile charge transport pathway Reviewed International journal

    Yuki Kurokawa, Takehito Kato, Shyam S. Pandey

    Physica Status Solidi-A ( Wiley )   220 ( 24 )   2300116 (1) - 2300116 (7)   2023.08

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    Authorship:Last author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)

    Solid-state dye-sensitized solar cells (ss-DSSCs) based on MK-2 dye-sensitized TiO2 photoanode and the most commonly used I−/I3− redox electrolyte are successfully fabricated by the simple method of solidification of the injected liquid electrolyte under slow solvent evaporation. The use of the ionic liquid, which is solid at room temperature, and slow evaporation of solvent at low temperature is a key step for solidification toward the fabrication of ss-DSSCs. It has been demonstrated that ss-DSSCs thus fabricated not only retain about 80% of photoconversion efficiency (PCE) as compared to their liquid-state DSSCs counterpart but also maintain the device stability for more than 1000 h. PCE of the ss-DSSCs is found to increase as a function of the increasing concentration of the ionic liquid used for electrolyte preparation. In the case of ss-DSSCs with the ionic liquid concentration of 1.2 m, there is a good balance between PCE and durability leading to not only retention of about 70% of PCE as compared to its liquid-state DSSCs counterparts but also maintaining the stability of the solar cell for more than 1000 h stored at room temperature.

    DOI: https://doi.org/10.1002/pssa.202300116

    DOI: https://doi.org/10.1002/pssa.202300116

    Kyutacar

    Other Link: https://onlinelibrary.wiley.com/doi/10.1002/pssa.202300116

  • High field-effect mobility in oriented thin films of D-A type semiconducting polymers by engineering stable interfacial system Reviewed International journal

    Shubham Sharma Ajendra K. Vats Linjun Tang Feng Kaishan Jumpei Toyoda Shuichi Nagamatsu Yoshito Ando Masaaki Tamagawa Hirofumi Tanaka Manish Pandey Shyam S. Pandey

    Chemical Engineering Journal ( Elsevier )   469   143932(1) - 143932(1)   2023.08

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    Conjugated polymers (CPs) have emerged as excellent organic semiconducting materials for flexible electronic applications. CPs exhibit a notably fast carrier transport along their main π-conjugated backbone followed by inter-chain hopping compelling the need to form large and ordered domains in thin films. Therefore, the formation of larger domains, along with their orientation, is critical in controlling the electrical properties of CP-based organic electronic devices. However, controlling the molecular ordering along with the formation of large aggregates is a challenge. In this work, the unidirectional floating film transfer method (UFTM) has been utilized to prepare oriented thin films of CPs, which is a highly facile, cost-effective and material utilization efficient technique. We have demonstrated that extent and direction of molecular orientation in the fabricated thin films can be tuned along with the higher degree of aggregation. The rheological aspects, especially viscosity, play a significant role in determining molecular ordering along with the formation of these large aggregates. Active control of viscosity to achieve a stable interfacial viscous system is paramount to achieving this, resulting in a very high mobility of 12.4 cm2V−1s−1.

    DOI: 10.1016/j.cej.2023.143932

    DOI: 10.1016/j.cej.2023.143932

    Kyutacar

    Other Link: https://www.sciencedirect.com/science/article/pii/S1385894723026633

  • Proliferating optoelectronic properties of doped ZnO nanoparticles Reviewed International journal

    Sharmila Chandran, Arthi Priscilla Ganesan, Nidhi Asthana, Shyam S. Pandey, Kshitij RB Singh, Arunadevi Natarajan

    Journal of Molecular Structure ( Elsevier )   1311   138310(1) - 138310(8))   2024.04

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    Ag-doped ZnO nanocomposites were synthesized precisely by adopting a wet chemical method to explore their optoelectronic characteristics for LED applications. Characterization studies have progressed for substantiation of its structural, and functional characteristics in conjugation with the optical properties of nanocomposites before and after doping. The metal-oxygen bonding was affirmed from IR spectra and excitation characteristics were detailed from UV–visible absorption spectra. The SEM images along with Energy dispersive X-ray analysis deliberates hexagonal morphology for pure ZnO which was surprisingly reformed into poly hexagon structures after doping with silver ions. The pertinence of the target material for LED application was verified by performing photoluminescence and charge density measurements. The doping of silver ions into ZnO presents a novel avenue in the field of optronics and serves as appropriate phosphors for light-emitting diodes. The application of the title compound was established by providing nano coating to LED bulb and emission efficiencies was recorded before and after coating. The present research recommends a unique method of nanocoating of LED bulb for efficient light intensity.

    DOI: https://doi.org/10.1016/j.molstruc.2024.138310

    DOI: https://doi.org/10.1016/j.molstruc.2024.138310

    Other Link: https://www.sciencedirect.com/science/article/pii/S0022286024008305?via%3Dihub

  • Clarifying the Role of Carboxyl Functionality in Squaraine towards Aggregation and Self-assembly through Photophysical Characterization and BSA Interactions. Reviewed International journal

    Sai Kiran Mavileti, Tamaki Kato, Shyam S. Pandey

    Journal of Molecular Structure ( Elsevier )   1309   138226(1) - 138226(9)   2024.04

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    The demand for near-infrared (NIR) probes with robust and stable fluorescence signals has surged, driven by their applications in optical sensing and bioimaging. Squraine dyes as NIR fluorescent probes have gained significant traction. However, understanding their behavior in aqueous media is important for their successful application. Herein we report the synthesis and photophysical characterization of carboxy-functionalized unsymmetrical squaraine dyes capable of light absorption and emission in the near-infrared (NIR) wavelength region. Structural variations in alkyl chain length, and spacer chain length between the primary chromophore and –COOH group were systematically introduced to investigate their impact on self-assembly in aqueous media leading to dye aggregation and their differential interactions with Bovine Serum Albumin (BSA) as a model protein. In phosphate buffer (PB) the absorption intensity decreased drastically along with pronounced shoulders due to dye aggregation leading to complete fluorescence quenching. However, in the presence of BSA, the intensity of shoulder bands reduced coupled with a sharp increase in the absorption associated with monomeric dye with the increasing concentration of BSA, indicating the prevention of dye aggregation owing to dye-BSA interactions. The prevention of dye aggregation due to dye-BSA interaction also led to a tremendous increase in the fluorescence intensities as a function of the increasing BSA concentrations. Site-selective study off BSA showed that these dyes bind preferably at Site-II using hydrophilic interactions. Thus, these dyes show great potential as FRET or fluorescent on/off probes for biosensing, non-covalent labeling of proteins, and fluorescent probes for bioimaging.

    DOI: https://doi.org/10.1016/j.molstruc.2024.138226

    DOI: https://doi.org/10.1016/j.molstruc.2024.138226

    Other Link: https://www.sciencedirect.com/science/article/pii/S0022286024007464?via%3Dihub

  • Targeted elimination of heavy metals from industrial wastewater: Synergistic effect of nano metal oxides Reviewed International journal

    Manoharan Swathika, Narasimhan Muthulakshmi Andal, Sivasubramaniam Dharani, Jay Singh, Shyam S. Pandey, Kshitij RB Singh, Arunadevi Natarajan

    Journal of the Taiwan Institute of Chemical Engineers ( Elsevier )   105485(1) - 105485(10)   2024.03

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    Design and synthesis of pro-active nano metal oxides.


    Advanced and cost-effective process for water treatment.


    Comparative study probed the efficacies of target compound in heavy metal removal.


    Upscaling the lab result to field samples to batch (96 %) and column method (98 %).

    DOI: https://doi.org/10.1016/j.jtice.2024.105485

    DOI: https://doi.org/10.1016/j.jtice.2024.105485

    Other Link: https://www.sciencedirect.com/science/article/pii/S1876107024001433?via%3Dihub

  • A Biocompatible NIR Squaraine Dye and Dye-Antibody Conjugates for Versatile Long-term In Vivo Fluorescence Bioimaging Reviewed International journal

    Priyanka Balyan, Galyna Bila, Sai Kiran Mavileti, Evgenia Bila, Nazar Negrych, Shekhar Gupta, Linjun Tang, Rostyslav Bilyy, Shyam S. Pandey, Tamaki Kato

    Materials Advances ( RSC )   5   3940 - 3949   2024.03

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    The demand for dependable near-infrared (NIR) probes, capable of sustained fluorescence within living systems and facile conjugation with biomolecules like antibodies and proteins, has been significantly on the rise, attributed to the substantial rise in the use of NIR imaging techniques and devices, with extensive integration into clinical diagnostics. Antibody conjugates are vital for targeted and selective bioimaging, enabling precise visualization of specific biomolecules within complex biological systems. Their multiplexing capability allows simultaneous detection of multiple targets, while their dynamic imaging capability enables real-time monitoring of cellular processes. Clinically, antibody conjugates have significant applications in disease prognosis, diagnosis, and monitoring. In this work, we report the synthesis of a new symmetrical NIR squaraine dye (SQ-58) with multiple carboxy anchoring groups for ease of coupling with antibodies. The dye showed decreased absorption and fluorescence intensity in phosphate buffer (PB) due to enhanced dye-aggregate formation. However, in the presence of bovine serum albumin (BSA) in PB, SQ-58 showed an enhanced fluorescence signal along concentrations of BSA. SQ-58 showed no cytotoxicity when tested in white laboratory mice while providing strong fluorescence when injected in vivo. Conjugation of SQ-58 through the carboxylic groups to the isotypic mouse IgG antibodies (IgG-SQ-58) resulted in uniform distribution of the targeted molecule in the whole cardiovascular system. The NIR signal of IgG-SQ-58 was stable for at least 7 days allowing the possibility of long-term imaging. Conjugation of SQ-58 to antibodies raised against NK-Ly lymphoma tumor cells allowed efficient discrimination of tumor cells grown in the abdomen of laboratory mice. Thus, to the best of our knowledge, we report for the first time a biocompatible NIR dye, SQ-58, that can be easily conjugatable to biomolecules, and its antibody conjugates for a wide range of bioimaging applications.

    DOI: https://doi.org/10.1039/d4ma00212a

    DOI: https://doi.org/10.1039/d4ma00212a

    Other Link: https://pubs.rsc.org/en/content/articlelanding/2024/ma/d4ma00212a

  • Design and Synthesis of Novel Squaraine-Based Fluorescent Probe for Far-Red Detection of Chymotrypsin Enzyme Reviewed International journal

    Shekhar Gupta, Priyanka, Sai Kiran Mavileti, Shyam S. Pandey, Tamaki Kato

    Molecules ( MDPI )   29 ( 6 )   1282(1) - 1282(14)   2024.03

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    Chymotrypsin, a crucial enzyme in human digestion, catalyzes the breakdown of milk proteins, underscoring its significance in both health diagnostics and dairy quality assurance. Addressing the critical need for rapid, cost-effective detection methods, we introduce a groundbreaking approach utilizing far-red technology and HOMO-Förster resonance energy transfer (FRET). Our novel probe, SQ-122 PC, features a unique molecular design that includes a squaraine dye (SQ), a peptide linker, and SQ moieties synthesized through solid-phase peptide synthesis. Demonstrating a remarkable quenching efficiency of 93.75% in a tailored H2O:DMSO (7:3) solvent system, our probe exhibits absorption and emission properties within the far-red spectrum, with an unprecedented detection limit of 0.130 nM. Importantly, our method offers unparalleled selectivity towards chymotrypsin, ensuring robust and accurate enzyme detection. This pioneering work underscores the immense potential of far-red-based homo-FRET systems in enabling the sensitive and specific detection of chymotrypsin enzyme activity. By bridging the gap between cutting-edge technology and biomedical diagnostics, our findings herald a new era of enzyme sensing, promising transformative advancements in disease diagnosis and dairy quality control.

    DOI: https://doi.org/10.3390/molecules29061282

    DOI: https://doi.org/10.3390/molecules29061282

    Other Link: https://www.mdpi.com/1420-3049/29/6/1282

  • The Influence of a Microstructural Conformation of Oriented Floating Films of Semiconducting Polymers on Organic Device Performance Reviewed International journal

    Shubham Sharma, Kumar Vivek Gaurav, Shuichi Nagamatsu, Shyam S. Pandey

    Polymers ( MDPI )   16 ( 5 )   710(1) - 710(13)   2024.03

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    first_pagesettingsOrder Article Reprints
    Open AccessArticle
    The Influence of a Microstructural Conformation of Oriented Floating Films of Semiconducting Polymers on Organic Device Performance
    by Shubham Sharma 1,*ORCID,Kumar Vivek Gaurav 1ORCID,Shuichi Nagamatsu 2 andShyam S. Pandey 1,*ORCID
    1
    Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu, Kitakyushu 808-0196, Japan
    2
    Department of Computer Science and Electronics, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka 820-8502, Japan
    *
    Authors to whom correspondence should be addressed.
    Polymers 2024, 16(5), 710; https://doi.org/10.3390/polym16050710
    Submission received: 24 January 2024 / Revised: 27 February 2024 / Accepted: 4 March 2024 / Published: 5 March 2024
    (This article belongs to the Special Issue New Progress in Semiconducting Polymer Nanoparticles)
    Downloadkeyboard_arrow_down Browse Figures Versions Notes
    Abstract
    Extended π-conjugation with backbone-planarity-driven π-π stacking dominates charge transport in semiconducting polymers (SCPs). The roles of SCP film morphology and macromolecular conformation concerning the substrate in influencing charge transport and its impact on device performance have been a subject of extensive debate. Face-on SCPs promote out-of-plane charge transport primarily through π-π stacking, with conjugated polymeric chains assisting transport in connecting crystalline domains, whereas edge-on SCPs promote in-plane charge transport primarily through conjugation and π-π stacking. In this work, we fabricated three different types of devices, namely, organic field effect transistors, organic Schottky diodes, and organic bistable memristors, as representatives of planar and vertical devices. We demonstrate that a planar device, i.e., an organic field effect transistor, performs well in an edge-on conformation exhibiting a field-effect mobility of 0.12 cm2V−1s−1 and on/off ratio >104, whereas vertical devices, i.e., organic Schottky diodes and organic memristors, perform well in a face-on conformation, exhibiting exceptionally high on/off ratios of ~107 and 106, respectively.

    DOI: https://doi.org/10.3390/polym16050710

    DOI: https://doi.org/10.3390/polym16050710

    Kyutacar

    Other Link: https://www.mdpi.com/2073-4360/16/5/710

  • Aloe Vera Gel (Aloe barbadensis Miller) Derived Self-Assembled Flower-Shaped Carbon Quantum Dots Interface for Ultra-Sensitive Electrochemical Detection of the Endocrine Disruptor Bisphenol-A Reviewed International journal

    Ankur Srivastava, Kshitij R, B. Singh, Khrsheed Khrsheed Ahmed, Ravindra Pratap Singh, Mrituanjay D. Pandey, Shyam S. Pandey, Jay Singh

    New Journal of Chemistry ( RSC )   48   5543 - 5552   2024.02

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    This manuscript is focused on the synthesis of biologically derived carbon quantum dots (CQDs) via hydrothermal methods using Aloevera leaves (Aloe barbadensis miller). The proposed biochemical route, utilizing Aloevera gel, has garnered attention due to its cost-effectiveness, eco-friendly nature, and ability to produce highly pure, stable, and fluorescent biologically derived self-assembled nanoparticles measuring approximately 5–6 nm in size. The primary objective was to harness plant sources and establish a sustainable and renewable platform for synthesizing valuable nanostructures, encouraging researchers to shift their focus from unhealthy chemicals to natural resources for healthier and non-polluting investigations. The synthesized CQDs exhibited remarkable colloidal properties, excellent fluorescence, and photostability under UV light. Characterization techniques such as powder XRD, UV-Vis spectroscopy, photoluminescence, FT-IR, AFM, and TEM were employed to analyse the prepared CQDs. Furthermore, the prepared CQDs displayed significant electrochemical behaviour in the presence of tyrosinase enzyme to detect Bisphenol-A, which functions as an endocrine disruptor (ED). These nanomaterials were also utilized for electrochemical biosensing applications. Additionally, the fabricated CQDs exhibited unique structural and morphological characteristics, along with efficient electrochemical properties, which are thoroughly discussed in the manuscript.

    DOI: https://doi.org/10.1039/D4NJ00061G

    DOI: https://doi.org/10.1039/D4NJ00061G

    Other Link: https://pubs.rsc.org/en/content/articlelanding/2024/nj/d4nj00061g

  • Hetero atom-based metal complexes as emitters in organic light-emitting diodes Reviewed International journal

    https://www.sciencedirect.com/science/article/pii/S002228602400187X?via%3Dihub

    Journal of Molecular Structure ( Elsevier )   1304   137664(1) - 137664(13)   2024.01

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    The new, more energy-efficient lighting systems and high-quality displays for new age digital devices is the demand of the current generation. In this regard, focused and deliberated research has been done on transition metal complexes as effective building blocks for organic light-emitting diodes (OLEDs). The activity of divalent metallic compounds was investigated through spotlighting Co (II), Ni (II), and Cu (II) metal ions with guanidinium naphthoate as blue phosphors in OLEDs. Using spectroscopic and diffraction techniques, the phosphors produced at the optimal temperature were studied both structurally and thermally. Additionally, the target compound's photophysical investigations in a variety of organic solvents with differing polarities were examined, and the findings were presented. Because of their quick photoluminescence response time and high emission quantum efficiency, Ni (II) complexes have drawn specific attention. Ni (II) complexes precisely exhibit thermally activated delayed fluorescence (TADF) and found to be the most promising materials for future lighting technology. We compared the efficiencies of various complexes in this study to provide an overview of the development of OLEDs. To affirm the pertinency of the synthesized compounds as phosphors, studies like photoluminescence, correlated color temperature, color purity, Duv, and the Television Lighting Consistency Index (TLCI) were performed and their photometric properties were also deliberated. Ni (II) shows an magnificent luminescence character and maximum coloring index for light sources and found to be an essential component for OLEDs.

    DOI: https://doi.org/10.1016/j.molstruc.2024.137664

    DOI: https://doi.org/10.1016/j.molstruc.2024.137664

  • Controlling adsorption of two dyes on TiO2 surface to improve the efficiency of see-through dye-sensitized solar cells Reviewed International journal

    https://www.sciencedirect.com/science/article/pii/S0038092X24000331

    Solar Energy ( Elsevier )   269   112339(1) - 112339(11)   2024.01

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    Transparent dye-sensitized solar cells (DSSCs) were fabricated utilizing judiciously selected blue-absorbing (D-131) and red-absorbing (SQ-140) two sensitizing dyes. These dyes exhibit complementary light absorption along with the least optical absorption in the 500 nm-600 nm wavelength region. This is helpful to impart not only high average visible transparency (AVT) but also high photoconversion efficiency (PCE). D-131 exhibits not only an approximately 1.5 times higher adsorption speed but also an approximately 4 times stronger binding on the TiO2. Stepwise dye adsorption on TiO2 was conducted to suppress unwanted and non-favourable inter-dye interactions. It has been demonstrated that when the SQ-140 adsorbed substrate was subjected to further dye adsorption by the D-131, there was a replacement of the SQ-140 by the D-131 reaching the optimal presence of both of the dyes in 20–30 min giving the best PCE of 4.5 %. However, in the opposite sequence of dye adsorption, there was no replacement of D-131 by SQ-140, rather SQ-140 was adsorbed in the available surface on the mesoporous TiO2 adsorbed with D-131. In this 2nd case, the optimal presence of both dyes is attained in 40 min of adsorption by SQ-140 giving the best PCE of 5.45 %. Transparent DSSCs fabricated using stepwise co-sensitized photoanodes demonstrated an AVT of 47.5 % and 26.5 % with thinner (single-layer) and thicker (double-layer) mesoporous TiO2, respectively.

    DOI: https://doi.org/10.1016/j.solener.2024.112339

    DOI: https://doi.org/10.1016/j.solener.2024.112339

    Kyutacar

  • Fabrication of All-Polymer Organic Phototransistors Utilizing Oriented P3HT Reviewed

    Tejswini K. Lahane, Shubham Sharma, Harshita Rai, Moulika Desu, Yoshito Ando, Shyam S. Pandey, and Vipul Singh

    IEEE Sensor Letters ( IEEE )   8 ( 2 )   3500304(1) - 3500304(4))   2023.12

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    High flexibility and solution processability have made all polymer organic pho-totransistors (AP-OPTs) a suitable candidate for various wearable and smart home applications. However, fabrication of the AP-OPTs via the solution process is still challenging owing to the possible degradation of the polymer gate dielectric layer by the solvent of the organic semiconductor, resulting in hampered device performance. To circumvent this issue, the unidirectional floating film transfer method, having the least impact on the underlying organic dielectric film, has been used to obtain highly oriented poly (3-hexylthiophene) (P3HT) thin film. Further, the effect of P3HT film orientation with respect to the channel has been investigated. Results revealed that the device with parallel orientation performed better with photosensitivity of 5 × 10 3 and photoresponsivity of 133 A/W.

    DOI: 10.1109/LSENS.2023.3347760

    DOI: 10.1109/LSENS.2023.3347760

    Kyutacar

    Other Link: https://ieeexplore.ieee.org/document/10376029

  • Enhancement in Capacitance of Ionic Type of EAP-Based Strain Sensors Reviewed International journal

    Nitin KUMAR Singh, Kazuto Takashima, Shyam S Pandey

    Sensors ( MDPI )   23 ( 23 )   9400(1) - 9400(19)   2023.11

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    This paper aims to enhance the capacitance of electroactive polymer (EAP)-based strain sensors. The enhancement in capacitance was achieved by using a free-standing stretchable polymer film while introducing conducting polymer to fabricate a hybrid dielectric film with controlled conductivity. In this work, styrene-ethylene-butylene-styrene (SEBS) rubber was used as the base material, and dodecyl benzene sulfonate anion (DBSA)-doped polyaniline (PANI) was used as filler to fabricate a hybrid composite conducting film. The maleic anhydride group of the SEBS Rubber and DBSA, the anion of the polyaniline dopant, make a very stable dispersion in Toluene and form a free-standing stretchable film by solution casting. DBSA-doped polyaniline increased the conductivity and dielectric constant of the dielectric film, resulting in a significant enhancement in the capacitance of the EAP-based strain sensor. The sensor presented in this article exhibits capacitance values ranging from 24.7 to 100 µF for strain levels ranging from 0 to 100%, and sensitivity was measured 3 at 100% strain level.

    DOI: https://doi.org/10.3390/s23239400

    DOI: https://doi.org/10.3390/s23239400

    Other Link: https://www.mdpi.com/1424-8220/23/23/9400

  • Squaric Acid Core Substituted Unsymmetrical Squaraine Dyes for Dye-Sensitized Solar Cells: Effect of Electron Acceptors on Their Photovoltaic Performance Reviewed International journal

    Safalmani Pradhan, Yuki Kurokawa, Suraya Shaban, Shyam S Pandey

    Colorants ( MDPI )   2 ( 4 )   654 - 673   2023.11

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    The design and development of sensitizing dyes possessing wide-wavelength photon harvesting encompassing visible to near-infrared (NIR) wavelength regions are unavoidable for increasing the overall efficiency of dye-sensitized solar cells (DSSCs). In this study, three far-red-sensitive squaraine sensitizers were designed computationally, synthesized, and characterized, aiming towards their suitability as a potential sensitizer for DSSCs. It has been found that the incorporation of an electron acceptor moiety in the central squaraine core brought about a red shift in the absorption maximum (λmax) and the emergence of a secondary absorption band in the blue region, thus broadening the photon-harvesting window. In addition, it also lowered the dye’s HOMO energy level enabling a facile regeneration of the photo-excited dye, which improved the photovoltaic performance of SQ-223, exhibiting a photoconversion efficiency (PCE) of 4.67%. Thereafter, to address the issue of wide-wavelength photon harvesting, DSSCs were fabricated by co-adsorbing two complementary dyes SQ-223 and D-131 in various molar ratios. The DSSC fabricated with D-131 and SQ-223 in 9:1 molar ratio displayed the best photovoltaic performance with a PCE of 5.81%, a significantly higher PCE when compared to corresponding individual dye-based DSSCs containing D-131 (3.94%) and SQ-223 (4.67%).

    DOI: https://doi.org/10.3390/colorants2040034

    DOI: https://doi.org/10.3390/colorants2040034

    Kyutacar

    Other Link: https://www.mdpi.com/2079-6447/2/4/34

  • Deposition of Transparent Ag Nanowires‐Based Top Electrode for the Development of Double‐Side Green Light Hybrid Photodetector Reviewed International journal

    Tejswini K. Lahane, Jitesh Agrawal, Yoshito Ando, Shyam S. Pandey, Vipul Singh

    Physica Status Solidi-A ( Wiley )   220 ( 24 )   2300166 (1) - 2300166 (8)   2023.10

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    Herein, various silver nanowires (AgNWs) deposition techniques, i.e., spin coating, Mayer rod coating, and spray coating are used to fabricate ZnO/P3HT-based double-side hybrid photodetectors and their photoresponse for 520 nm green light has been compared. The electrodes are coated over the polyethylene terephthalate sheet separately and laminated over the indium tin oxide (ITO)/ZnO/P3HT. Mayer rod-coated electrodes are found to have a sheet resistance (Rsh) of 24 Ω Sq.−1 and a light transmission of 91%. Additionally, spin- and spray-coated AgNW electrodes exhibit Rsh of 20 and 23 Ω Sq.−1, respectively, along with 80% and 85% transparencies. As the device consists of transparent electrodes on both sides, it can detect light from both the top and bottom sides. Mayer rod-coated AgNW electrode-based device has produced better photosensitivity of 1500 (for ITO side illumination) and 630 (for AgNWs side illumination) at λ = 525 nm. Further, the device has demonstrated the responsivity of 124 mAW−1 and specific detectivity of 3 × 1011 Jones.

    DOI: https://doi.org/10.1002/pssa.202300166

    DOI: https://doi.org/10.1002/pssa.202300166

    Kyutacar

    Other Link: https://onlinelibrary.wiley.com/doi/10.1002/pssa.202300166

  • Bioinspired Multifunctional Silver Nanoparticles for Optical Sensing Applications: A Sustainable Approach Invited Reviewed International journal

    Kshitij RB Singh, Arunadevi Natarajan, Shyam S. Pandey

    https://doi.org/10.1021/acsabm.3c00669 ( American Chemical Society )   6 ( 11 )   4549 - 4571   2023.10

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    Silver nanoparticles developed via biosynthesis are the most fascinating nanosized particles and encompassed with excellent physicochemical properties. The bioinspired nanoparticles with different shapes and sizes have attracted huge attention due to their stability, low cost, environmental friendliness, and use of less hazardous chemicals. This is an ideal method for synthesizing a range of nanosized metal particles from plants and biomolecules. Optical biosensors are progressively being fabricated for the attainment of sustainability by using opportunities offered by nanotechnology. This review focuses mainly on tuning the optical properties of the metal nanoparticles for optical sensing to explore the importance and applications of bioinspired silver nanoparticles. Further, this review deliberates the role of bioinspired silver nanoparticles (Ag NPs) in biomedical, agricultural, environmental, and energy applications. Profound insight into the antimicrobial properties of these nanoparticles is also appreciated. Tailor-made bioinspired nanoparticles with effectuating characteristics can unsurprisingly target tumor cells and distribute enwrapped payloads intensively. Existing challenges and prospects of bioinspired Ag NPs are also summarized. This review is expected to deliver perceptions about the progress of the next generation of bioinspired Ag NPs and their outstanding performances in various fields by promoting sustainable practices for fabricating optical sensing devices.

    DOI: https://doi.org/10.1021/acsabm.3c00669

    DOI: https://doi.org/10.1021/acsabm.3c00669

    Other Link: https://pubs.acs.org/doi/10.1021/acsabm.3c00669

  • Regulation of neuroinflammation in Alzheimer's disease via nanoparticle-loaded phytocompounds with anti-inflammatory and autophagy-inducing properties Reviewed International journal

    Vinayak Nayak Sushmita Patra Shrushti Rou Atala Bihari Jena Rohit Sharma Kali Prasad Pattanaik Jay Singh Shyam S. Pandey Ravindra Pratap Singh Sanatan Majhi Kshitij RB Singh Rout George Kerry

    Phytomedicine ( Elsevier )   122   155150 (1) - 155150 (22)   2023.10

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    Alzheimer's disease (AD) is characterized by neuroinflammation linked to amyloid β (Aβ) aggregation and phosphorylated tau (τ) protein in neurofibrillary tangles (NFTs). Key elements in Aβ production and NFT assembly, like γ-secretase and p38 mitogen-activated protein kinase (p38MAPK), contribute to neuroinflammation. In addition, impaired proteosomal and autophagic pathways increase Aβ and τ aggregation, leading to neuronal damage. Conventional neuroinflammation drugs have limitations due to unidirectional therapeutic approaches and challenges in crossing the Blood-Brain Barrier (BBB). Clinical trials for non-steroidal anti-inflammatory drugs (NSAIDs) and other therapeutics remain uncertain. Novel strategies addressing the complex pathogenesis and BBB translocation are needed to effectively tackle AD-related neuroinflammation.

    DOI: https://doi.org/10.1016/j.phymed.2023.155150

    DOI: https://doi.org/10.1016/j.phymed.2023.155150

    Other Link: https://www.sciencedirect.com/science/article/pii/S0944711323005093?via%3Dihub

  • Chitosan stabilized copper iodide nanoparticles enabled nano-bio-engineered platform for efficient electrochemical biosensing of dopamine Reviewed International journal

    Kshitij RB Singh, Pooja Singh, Sadhucharan Mallick, Jay Singh, Shyam S. Pandey

    International Journal of Biological Macromolecules ( Elsevier )   253 ( 8 )   127587(1) - 127587(12)   2023.09

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    Neurodegenerative disorders are one of the significant challenges to the aging society, as per the United Nations, where 1 in 6 people globally over 65 years of age are expected to suffer by 2050. The exact pathophysiological root of these disorders is although not known adequately, but reduced dopamine (most significant neurotransmitters) levels have been reported in people affected by Parkinson's disease. Sensitive detection and effective monitoring of dopamine can help to diagnose these neurodegenerative disorders at a very early stage, which will help to properly treat these disorders and slow down their progression. Therefore, it is crucial to detect physiological and clinically acceptable amounts of dopamine with high sensitivity and selectivity in basic pathophysiology research, medication, and illness diagnosis. Here in this present investigation, nano-bio-engineered stable chitosan stabilized copper iodide nanoparticles (CS@CuI NPs) were synthesized to engineer the active biosensing platform for developing dopamine biosensors. Initially, the as-synthesized nano-bio-engineered CS@CuI NPs were subjected to its drop-casting onto an Indium tin oxide (ITO) conducting glass substrate. This substrate platform was then utilized to immobilize tyrosinase (Tyr) enzyme by drop-casting to fabricate Tyr/CS@CuI NPs/ITO bioelectrode for the ultrasensitive determination of dopamine. Several techniques were used to characterize the structural, optical, and morphological properties of the synthesized CS@CuI NPs and Tyr/CS@CuI NPs/ITO bioelectrode. Further, the as-prepared bioelectrode was evaluated for its suitability and electrocatalytic behaviour towards dopamine by cyclic voltammetry. A perusal of the electroanalytic results of the fabricated biosensor revealed that under the optimized experimental conditions, Tyr/CS@CuI NPs/ITO bioelectrode exhibits a very high electrochemical sensitivity of 11.64 μA μM−1 cm−2 towards dopamine with the low limit of detection and quantification of 0.02 and 0.386 μM, respectively. In addition, the fabricated bioelectrode was stable up to 46 days with only 4.82 % current loss, reusable till 20 scans, and it also performed effectively while real sample analysis. Therefore, the nano-bio-engineered biosensor platform being reported can determine deficient dopamine levels in a very selective and sensitive manner, which can help adequately manage neurodegenerative disorders, further slowing down the disease progression.

    DOI: https://doi.org/10.1016/j.ijbiomac.2023.127587

    DOI: https://doi.org/10.1016/j.ijbiomac.2023.127587

    Other Link: https://www.sciencedirect.com/science/article/pii/S0141813023044859?via%3Dihub

  • Symbiotic study of N-bridged metal complexes as electrocatalysts for hydrogen evolution reaction Reviewed International journal

    Arunadevi Natarajan, M. Swathika, Kshitij RB Singh, Ranjana Verma, Shyam S. Pandey, Jay Singh

    International Journal of Hydrogen Energy ( Elsevier )   52 ( A )   1458 - 1471   2023.08

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    Design and fabrication of non-noble metal catalysts for the extensive generation of H2 (hydrogen) gas by water splitting is the upsurging field aiming towards the sustainable environment and need the future clean and green energy. However, scheming and understanding the basic principle regulating the activity of the catalyst is still inexplicable. Although Pt is currently the material of choice owing to its high electrocatalytic activities but need for its high loading and high cost is an intriguing issue needing amicable solution. The hybrid structures of heteroatom-based transition metal complexes are more effective and are cost effective electrocatalysts for hydrogen production. In this proposed work, the electrocatalytic behaviour of alkali (Li+, Na+, K+) and alkaline metal (Ca2+, Sr2+, Ba2+) was figured out along with their synthetic procedure and characterization. Owing to their high complexing ability, ring formation, and bidentate nature, substituted naphthoic acid and aminoguanidine were chosen as bridging ligands. The thermodynamic stability and best catalytic behaviour of synthesized alkali and alkaline earth metals were compared and presented based on electrochemical studies. Linear sweep voltammetry (LSV) curves display excellent activity and Tafel slope was found in the range of 6.38–40 mVdec−1 in 0.5 M H2SO4. The electrochemical impedance spectroscopy (EIS) test was accomplished to recognize the mechanism of HER, and charge transfer resistance was less which indicates that composites are favourable for the hydrogen evolution. The electrochemical surface area (ECSA) was figured by studying the electric double layer capacitance (C dl) and it was found to be 0.377 μFcm2 - 0.143 μFcm2. More prominent ECSA values implies, the target complexes have enhanced electrochemically active/dynamic sites and better hydrogen evolution performance. According to the results, high-performing catalytically active sites are found to be Li [1NA-AMG] metal ions, thus showing a potential method for electrocatalyst engineering. Furthermore, in a volcano plot, the position of the Li [1NA-AMG] metal ions is found to be close to the apex with near thermoneutral catalytic activity. Based on the results, we successfully designed an electrocatalyst as a prospective candidate for hydrogen evolution reaction.

    DOI: https://doi.org/10.1016/j.ijhydene.2023.07.305

    DOI: https://doi.org/10.1016/j.ijhydene.2023.07.305

    Other Link: https://www.sciencedirect.com/science/article/pii/S0360319923038582?via%3Dihub

  • Fabrication and Characterization of Bifacial Dye-Sensitized Solar Cells Utilizing Indoline Dye with Iodine and Cobalt-based Redox Electrolytes Reviewed International journal

    Suraya Shaban, Safalmani Pradhan, Shyam S. Pandey

    Physica Status Solidi-A ( Elsevier )   220 ( 24 )   2300241 (1) - 2300241 (7)   2023.08

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    Bifacial solar cells are gaining popularity due to their compactness, space-saving property, and higher photoconversion efficiency (PCE) than mono-facial solar cells. Bifacial dye-sensitized solar cells (BF-DSSCs) are fabricated and characterized utilizing D-205 as a dye sensitizer in combination with I−/I3− and Co2+/Co3+ redox electrolytes. BF-DSSCs using iodine-based electrolytes demonstrate a cumulative PCE and bifaciality factor (BFF) of 13.05% and 85%, respectively. The hampered PCE under backside light illumination is attributed to the absorption of photons by the electrolyte itself. Contrary to this, BF-DSSCs fabricated using cobalt-complex-based redox electrolyte exhibits an exceptionally high BFF of nearly 100% with a PCE of 4.77% and 4.75% under the front- and rear-light illumination, respectively. Although the open-circuit voltage of the BF-DSSCs fabricated using cobalt electrolyte (with deeper redox potential) is slightly higher than that of BF-DSSCs fabricated using iodine electrolyte, their cumulative PCE (9.52%) is much lower than that of iodine-based device counterparts (13.05%). This decrease in PCE is attributed to the relatively fast charge recombination in the cobalt-electrolyte-based BF-DSSCs.

    DOI: https://doi.org/10.1002/pssa.202300241

    DOI: https://doi.org/10.1002/pssa.202300241

    Kyutacar

    Other Link: https://onlinelibrary.wiley.com/doi/10.1002/pssa.202300241

  • The role of solvents in the microstructure and charge transport of semiconducting polymer films prepared at the air–liquid interface Reviewed International journal

    Manish Pandey, Jumpei Toyoda, Shubham Sharma, Yongyoon Cho, Hiroaki Benten, Shyam S Pandey, Masakazu Nakamura

    Journal of Materials Chemistry C ( RSC )   11   12364 - 12373   2023.08

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    Charge transport in semiconducting polymers (SCPs) is strongly influenced by their film microstructure. Fabrication of SCP floating films at the air–liquid interface offers numerous advantages over conventional solution processing. The casting solvent plays a crucial role in forming film microstructures, which has been extensively studied for various fabrication methods. However, floating films of SCPs are generally processed with a single solvent, and the role of their boiling point (Tb) or solubility of individual solvents (or blends) has never been considered. In this report, we have systematically studied the effect of different solvents and blends on the film microstructure and field-effect transistor (FET) mobility of three well-known SCPs, PQT, PBTTT and P(NDI2OD-T2). We used the unidirectional floating film transfer method (UFTM) and interfacial spreading to fabricate large-area oriented and isotropic films, respectively. The detailed analysis of the film microstructure, macroscopic orientation and FET mobility of the films of these SCPs processed with different solvents has been studied. Our results clarify that a low Tb solvent (<90 °C) is a prerequisite for obtaining uniform large-area oriented films, and films processed with high Tb solvents are isotropic. As expected, the effect of Tb of the solvent on the orientation of SCPs and FET mobility is different for various SCPs under consideration. Instead, the variation of FET mobility is linked to the optical dichroic ratio (polymer orientation), interchain ordering in films and the presence of fiber-like aggregates.

    DOI: https://doi.org/10.1039/D3TC02282J

    DOI: https://doi.org/10.1039/D3TC02282J

    Other Link: https://pubs.rsc.org/en/content/articlelanding/2023/tc/d3tc02282j/unauth

  • Design, Synthesis and Photophysical Characterization of Multifunctional Far-red Squaraine Dyes for Dye-Sensitized Solar Cells Reviewed International journal

    Kota Mori, Yuki Kurokawa, Sai Kiran Mavileti, Shyam S Pandey

    Physica Status Solidi-A ( Wiley )   220 ( 24 )   2023.08

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    Novel far-red sensitive symmetrical squaraine (SQ) dyes aiming toward multifunctional properties such as control of dye aggregation, promotion of molecular self-assembly, and introduction of electrolyte function by alkyl chain terminal modification are designed. Newly designed dyes without terminal modification as reference (SQ-5) along with iodine (SQ-77) and imidazole (SQ-79) alkyl terminal-modified dyes are successfully synthesized, characterized, and subjected to detailed photophysical investigations. Iodine terminal modification (SQ-77) leads to enhanced molar extinction coefficient, dye aggregation, dye loading, and binding strength on the TiO2 surface, which is found by just the opposite after the imidazole (SQ-79) terminal modification. Demonstration of nearly similar photovoltaic performance by SQ-77 and SQ-79 in the absence of iodine and chenodeoxycholic acid validates their multifunctional role as electrolyte function and dye aggregation prevention, respectively, in addition to their main role as photosensitizer. Dye-sensitized solar cells fabricated with SQ-5 as a sensitizer show efficient far-red to near-infrared photo sensitization and photon harvesting with short-circuit photocurrent density, open-circuit voltage, and fill factor of 11.98 mA cm−2, 0.61 V, and 0.57, respectively, leading to a photoconversion efficiency of 4.2% under simulated solar irradiation.

    DOI: https://doi.org/10.1002/pssa.202300254

    DOI: https://doi.org/10.1002/pssa.202300254

    Kyutacar

    Other Link: https://onlinelibrary.wiley.com/doi/10.1002/pssa.202300254

  • Enhancing the Performance of Organic Phototransistors Based on Oriented Floating Films of P3HT Assisted by Al-Island Deposition Reviewed International journal

    Tejswini K. Lahane, Shubham Sharma, Moulika Desu, Yoshito Ando, Shyam S. Pandey, Vipul Singh

    Materials ( MDPI )   16   5249(1) - 5249(12)   2023.07

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    The fabrication of high-performance Organic Phototransistors (OPTs) by depositing Al-islands atop Poly(3-hexylthiophene) (P3HT) thin film coated using the unidirectional floating-film transfer method (UFTM) has been realized. Further, the effect of Al-island thickness on the OPTs’ performance has been intensively investigated using X-ray photoelectron spectroscopy, X-ray Diffraction, Atomic force microscopy and UV-Vis spectroscopy analysis. Under the optimized conditions, OPTs’ mobility and on–off ratio were found to be 2 × 10−2 cm2 V−1 s−1 and 3 × 104, respectively. Further, the device exhibited high photosensitivity of 105, responsivity of 339 A/W, detectivity of 3 × 1014 Jones, and external quantum efficiency of 7.8 × 103% when illuminated with a 525 nm LED laser (0.3 mW/cm2).

    DOI: https://doi.org/10.3390/ma16155249

    DOI: https://doi.org/10.3390/ma16155249

    Kyutacar

    Other Link: https://www.mdpi.com/1996-1944/16/15/5249

  • Advancement in precision diagnosis and therapeutic for triple-negative breast cancer: Harnessing diagnostic potential of CRISPR-cas & engineered CAR T-cells mediated therapeutics Reviewed International journal

    Vinayak Nayak, Sushmita Patra, Kshitij RB Singh, Bristy Ganguly, Das Nishant Kumar, Deepak Panda, Ganesh Kumar Maurya, Jay Singh, Sanatan Majhi, Rohit Sharma, Shyam S. Pandey, Ravindra Pratap Singh, Rout George Kerry

    Environmental Research ( Elsevier )   235   116573(1) - 116573(31)   2023.07

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    Cancer is characterized by uncontrolled cell growth, disrupted regulatory pathways, and the accumulation of genetic mutations. These mutations across different types of cancer lead to disruptions in signaling pathways and alterations in protein expression related to cellular growth and proliferation. This review highlights the AKT signaling cascade and the retinoblastoma protein (pRb) regulating cascade as promising for novel nanotheranostic interventions. Through synergizing state-of-the-art gene editing tools like the Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)-Cas system with nanomaterials and targeting AKT, there is potential to enhance cancer diagnostics significantly. Furthermore, the integration of modified CAR-T cells into multifunctional nanodelivery systems offers a promising approach for targeted cancer inhibition, including the eradication of cancer stem cells (CSCs). Within the context of highly aggressive and metastatic Triple-negative Breast Cancer (TNBC), this review specifically focuses on devising innovative nanotheranostics. For both pre-clinical and post-clinical TNBC detection, the utilization of the CRISPR-Cas system, guided by RNA (gRNA) and coupled with a fluorescent reporter specifically designed to detect TNBC's mutated sequence, could be promising. Additionally, a cutting-edge approach involving the engineering of TNBC-specific iCAR and syn-Notch CAR T-cells, combined with the co-delivery of a hybrid polymeric nano-liposome encapsulating a conditionally replicative adenoviral vector (CRAdV) against CSCs, could present an intriguing intervention strategy. This review thus paves the way for exciting advancements in the field of nanotheranostics for the treatment of TNBC and beyond.

    DOI: https://doi.org/10.1016/j.envres.2023.116573

    DOI: https://doi.org/10.1016/j.envres.2023.116573

    Other Link: https://www.sciencedirect.com/science/article/pii/S0013935123013774?via%3Dihub

  • Facile Fabrication and Characterization of Oriented and Multilayer Thin Films of Solution Processable Conjugated Polymer Reviewed International journal

    Shubham Sharma, Shuichi Nagamatsu, Vipul Singh, Shyam S. Pandey

    Physica Status Solidi-A ( Elsevier )   220 ( 24 )   2300194 (1) - 2300194 (7)   2023.07

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    Fabrication of multilayer thin films of solution-processable organic semiconductors has great potential in organic electronics, but adopting existing thin-film techniques to attain this is highly cumbersome. Herein, a unique unidirectional floating film transfer method has been utilized, which allows the facile fabrication of large area and oriented thin films of conjugated polymers. This method has successfully fabricated and characterized multilayer and oriented thin films of regioregular poly(3-hexylthiophene) without having any adverse effect on the underlying layers. Optical characterizations reveal that fabricated thin films are anisotropic with a dichroic ratio of 2.2 having a single layer thickness of 14.5 nm. X-ray diffraction results demonstrate uniformity in the crystallinity of the multilayered thin film with comparable crystallite size and interplanar spacing with purely edge-on molecular orientation. The organic field effect transistor fabricates using multilayer thin films and also exhibits a uniform and saturated charge carrier mobility of about 0.1 cm2  V−1 s−1.

    DOI: https://doi.org/10.1002/pssa.202300194

    DOI: https://doi.org/10.1002/pssa.202300194

    Kyutacar

    Other Link: https://onlinelibrary.wiley.com/doi/10.1002/pssa.202300194

  • Gold nanoparticle assisted colorimetric biosensors for rapid polyethylene terephthalate (PET) sensing for sustainable environment to monitor microplastics Reviewed International journal

    Abhishek Behera, Soumya Ranjan Mahapatra, Sanatan Majhi, Namrata Misra, Rohit Sharma, Jay Singh, Ravindra Pratap Singh, Shyam S. Pandey, Kshitij RB Singh, Rout George Kerry

    Environmental Research ( Elsevier )   234   116556(1) - 116556(10)   2023.07

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    The extremely widespread and ubiquitous nature of plastics, estimated to boost its global production by 26 billion tons till 2050. The large chunks of plastic waste that decomposed down to micro- or nano plastics (MNPs) leads to various ill effects on biological entities. The conventional PET detection methods lack rapid detection of microplastics due to variances in microplastic features, long-drawn-out sample pre-processing procedures and complex instrumentation. Therefore, an instantaneous colorimetric evaluation of microplastic will ensures the simplicity of conducting assays on field. Several nanoparticle-based biosensors that detects proteins, nucleic acids, metabolites operate on either cluster or disperse state of nanoparticle. However, gold nanoparticle (AuNPs) emerges an ideal scaffold for sensory element in lateral flow biosensors due to their simple surface functionalization, unique optoelectronic properties and varied colour spectrum depending on morphologies and aggregation state. In this paper an effort has been made in the form of a hypothesis using in silico tools as a basis to detect polyethylene terephthalate (PET) – most abundant type of microplastic using gold nanoparticle based lateral flow biosensor. We retrieved sequences of PET-binding synthetic peptides and modelled their 3-D structure using I-Tasser server. The best protein model for each peptide sequences are docked with PET monomers – BHET, MHET and other PET polymeric ligands, to evaluate their binding affinities. The synthetic peptide SP 1 (WPAWKTHPILRM) docked with BHET and (MHET)4 exhibits 1.5-fold increases in binding affinity as compared to reference PET anchor peptide Dermaseptin SI (DSI). The GROMACS molecular dynamics simulation studies of synthetic peptide SP 1 - BHET & - (MHET)4 complexes for 50 ns further confirmed the stable binding. RMSF, RMSD, hydrogen bonds, Rg and SASA analysis provides useful structural insights of the SP 1 complexes as compared to reference DSI. Furthermore, SP 1 functionalized AuNP-based colorimetric device was described in detail for detection of PET.

    DOI: https://doi.org/10.1016/j.envres.2023.116556

    DOI: https://doi.org/10.1016/j.envres.2023.116556

    Other Link: https://www.sciencedirect.com/science/article/pii/S0013935123013609?via%3Dihub

  • Controlling the TiO 2 –Dye Nanomolecular Interactions for Improving the Photoconversion in Transparent Dye‐Sensitized Solar Cells Reviewed International journal

    Pritha Roy, Yuki Kurokawa, Shyam S. Pandey

    Physica Status Solidi-A ( Wiley )   220 ( 4 )   2300158 (1) - 2300158 (8)   2023.06

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    Herein, transparent dye-sensitized solar cells (DSSCs) are fabricated using two sensitizing dyes aiming toward panchromatic photon harvesting following two different approaches of dye adsorption such as using dye cocktail and sequential dye adsorption. A combination of complementary yellow-colored dye (D-131) and green-colored far-red-sensitive squaraine dye (SQ-140) is judiciously selected not only for panchromatic light absorption but also for bypassing the absorption in the high eye-sensitivity wavelength region (500–600 nm) region to improve the transparency. The DSSC fabricated using a dye cocktail of D-131 and SQ-140 in a 9:1 molar ratio exhibits a photoconversion efficiency (PCE) and average visible transparency (AVT) of 3.89% and 36.9%, respectively. In contrast, stepwise and controlled dye adsorption of SQ-140 followed by D-131 on mesoporous TiO2 leads to further improvement in the PCE from 3.89% to 4.50%, while AVT is reduced from 36.9% to 15.6%. This marked improvement in the PCE for the stepwise co-sensitized transparent DSSCs is attributed to the suppression of unfavorable inter-dye interaction leading to synergistic photon harvesting by both of the constituent sensitizing dyes.

    DOI: https://doi.org/10.1002/pssa.202300158

    DOI: https://doi.org/10.1002/pssa.202300158

    Kyutacar

    Other Link: https://onlinelibrary.wiley.com/doi/10.1002/pssa.202300158

  • Vertical Distribution of Molecular Orientation and Its Implication on Charge Transport in Floating Films of Conjugated Polymers Reviewed International journal

    Harshita Rai, Kumar Vivek Gaurav, Safalmani Pradhan, Moulika Desu, Shubham Sharma, Shuichi Nagamatsu, Shyam S. Pandey

    Physica Status Solidi-A ( Wiley )   220 ( 24 )   2300236 (1) - 2300236 (7)   2023.06

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    Fabrication of uniform and oriented thin films of conjugated polymers (CPs) with controlled thickness is essential for the implementation of organic devices. Over the years, unidirectional floating film transfer method (UFTM) has emerged as a facile technique for the fabrication of oriented thin films but its distribution of orientation in vertical (thickness) direction has not been explored yet. To investigate this, thin films of nonregioregular poly(3-hexylthiophene) are fabricated using UFTM with different concentrations of CPs to obtain thickness variation from 11 to 47 nm. Thin films of 4% and 9% polymer solution have similar dichroic ratio of 5.5 but have an appreciable difference in film thickness of 12 and 47 nm where thicker films are disordered as probed by polarized absorption spectra. Organic field-effect transistors fabricated using thinner films (12 nm) exhibit a saturated charge carrier mobility of 2.3 × 10−3cm2 V−1 s−1, an order of magnitude higher than its thicker (47 nm) counterpart. This difference in device performance can be attributed to the fact that charge transport is principally governed by the top polymer surface at air–polymer interface, which is found to be more disordered owing to the vertical distribution of orientation.

    DOI: https://doi.org/10.1002/pssa.202300236

    DOI: https://doi.org/10.1002/pssa.202300236

    Kyutacar

    Other Link: https://onlinelibrary.wiley.com/doi/10.1002/pssa.202300236

  • Optimization of Device Parameters for Back Contact Transparent Conductive Oxide Less Dye Sensitized Solar Cells Fabrication Reviewed International journal

    Md Zaman Molla, Ajay Kumar Baranwal, Shuzi Hayase, Shyam S. Pandey

    Physica Status Solidi-A ( Wiley )   220 ( 4 )   2300095(1) - 2300095(7)   2023.06

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    Transparent conductive oxide–less (TCO-less) dye-sensitized solar cell (DSSC) has been constructed and characterized employing mesoporous TiO2-coated stainless-steel mesh (S-S-mesh or Mesh) as a bendable photoanode and iodine-based redox electrolyte. Efforts have been directed toward optimizing electronic parameters to enhance the power conversion efficiency (PCE) of TCO-less DSSC to equalize its TCO-based DSSC counterpart. It is found that protection of Mesh is essential for increasing the PCE of TCO-less DSSCs employing iodine electrolyte as assured by suppressed reverse saturation current and better diode factor. The PCE of 5.6% is obtained with TCO-less DSSC compared with TCO-based DSSC with PCE of 6.09%. A bit of decrease in PCE with TCO-less DSSC is due to larger resistance in TiO2/dye/electrolyte as well as within electrolyte as evident by electrochemical impedance spectroscopy (EIS) study owing to the Mesh having perforated holes and larger thickness of electrolyte absorbing sheet of the porous polytetrafluoroethylene film (35 μm) compared to TCO-based DSSC without any barriers and lower electrolyte layer thickness of 25 μm.

    DOI: https://doi.org/10.1002/pssa.202300095

    DOI: https://doi.org/10.1002/pssa.202300095

  • Design and Synthesis of Novel Squaraine Dye with Highly Enhanced Far‐Red Fluorescence and its Interaction with a Model Protein Reviewed International journal

    Shekhar Gupta, Yuki Yamawaki, Safalmani Pradhan, Shyam S. Pandey, Tamaki Kato

    Physica Status Solidi-A ( Wiley )   220 ( 24 )   2300226(1) - 2300226(8)   2023.06

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    Novel amine-functionalized symmetrical squaraine (SQ)-dye and fluorescein isothiocyanate (FITC)–SQ–FITC dye conjugate are designed and successfully synthesized, followed by their structural and photophysical characterizations. Symmetrical SQ dye exhibits complete fluorescence quenching in polar solvents, which is explained by considering photoinduced electron transfer (PET) as a dominant quenching pathway. In contrast, FITC–SQ–FITC dye conjugate results in a decrease in an aggregation of both SQ and FITC units and about 47 times enhancement in the far-red fluorescence appearing at 674 nm. This profound enhancement in the far-red fluorescence is explained by the synergistic influence of suppression of aggregation-induced quenching (ACQ) and PET. This newly designed FITC–SQ–FITC dye conjugate shows complete quenching of the far-red fluorescence in phosphate buffer saline (PBS) owing to very strong dye aggregation, as confirmed by spectral absorption investigation. In PBS, it strongly interacts with bovine serum albumin (BSA) (Ka = 1.1 × 104 m−1) used as a model protein breaking the dye aggregation by BSA and increasing far-red fluorescence associated with SQ as a function of increasing BSA concentration. A profound 117 times increase in fluorescence at 674 nm with 25 times of BSA concentration suggests that the designed FITC–SQ–FITC is an excellent far-red probe for dye-protein interaction.

    DOI: https://doi.org/10.1002/pssa.202300226

    DOI: https://doi.org/10.1002/pssa.202300226

    Other Link: https://onlinelibrary.wiley.com/doi/10.1002/pssa.202300226

  • Bistable Resistive Memory Switches Fabricated by Floating Thin Films of Conjugated Polymers Reviewed International journal

    Shubham Sharma, Nikita Kumari, Shuichi Nagamatsu, Masakazu Nakamura, Shyam S Pandey

    Materials Today Electronics ( Elsevier )   4   100043(1) - 100043(1)   2023.06

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    The layer-by-layer (LBL) fabrication of conjugated polymer (CPs) thin films while preserving their microstructural features by solution processing is highly desired for compact and flexible electronic circuits. However, it is cumbersome and challenging owing to the unavoidable damage to the underlying layers. To circumvent this issue, the unidirectional floating-film transfer method (UFTM) was utilized for the LBL fabrication of oriented CP thin films on the orthogonal liquid surfaces. Further, resistive bistable memory switches were fabricated by sandwiching a layer of metal nanostructures between the LBL-fabricated oriented CP thin films. The resistive switching phenomena were realized by utilizing the applied bias-dependent charge trapping, holding, and recombination on the available states at vacuum-deposited aluminum nanostructures. The effect of CP backbone conformation on the vertical charge transport was also analyzed via a comparative study of three thiophene-based polymers namely RR-P3HT, PBTTT, and PTB-7. It was revealed that CPs with relatively fewer hydrophobic side chains was more favorable for the facile vertical charge transport due to its preferred face-on conformation on the hydrophilic liquid substrate used in UFTM. It was demonstrated that a non-volatile bistable resistive memory switch fabricated using UFTM-processed oriented thin films of PTB-7 exhibited a remarkably high on-off ratio of 1.5 × 106 with high durability.

    DOI: https://doi.org/10.1016/j.mtelec.2023.100043

    DOI: https://doi.org/10.1016/j.mtelec.2023.100043

    Kyutacar

    Other Link: https://www.sciencedirect.com/science/article/pii/S2772949423000190

  • Controlling the electrocatalytic activities of conducting polymer thin films toward suitability as cost-effective counter electrodes of dye-sensitized solar cells Reviewed International journal

    Yuki Kurokawa, Takehito Kato, Shyam S. Pandey

    Synthetic Metals ( Elsevier )   220   117362(1) - 117362(8))   2023.05

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    Role dopant anions and solvents in electropolymerized conducting polymers (CPs) on controlling the
    morphology of thin films and electrocatalytic activities to judge their suitability as low-cost counter electrodes (CE) of dye-sensitized solar cells ( DSSCs) was systematically investigated. Amongst various CPs such as polyaniline (PANI), polypyrrole (PPy), and PEDOT with sodium dodecyl sulfate (SDS) as a dopant, PEDOT was found to exhibit the best photovoltaic performance with a photoconversion efficiency (PCE) of 6.99 %. This was attributed to the best lectrocatalytic activity due to the smallest ΔEp, most minor R1, and nano-morphologyassisted high surface area, as confirmed by CV, EIS, and FE-SEM investigations. Using PEDOT as CP, the nature of dopants such as SDS, TFSI, and ClO4 has also been found to control the electrocatalytic activities and the morphology of the fabricated thin films affecting overall photovoltaic performance DSSCs. Amongst the various CP-based CE fabricated using different dopants and solvents, PEDOT:TFSI thin films prepared in acetonitrile solvent and used as CE exhibited not only the best electrocatalytic activity as CE but also demonstrated the best
    photovoltaic performance with PCE of 7.0 %, which almost similar to that of DSSC utilizing Pt as CE with PCE of 7.1 %. Therefore, it was concluded that the nature of CP and dopant ions were vital factors in governing the electrocatalytic activities of the thin films to ensure their suitability as CE for optimal functioning and controlling the DSSC performance.

    DOI: https://doi.org/10.1016/j.synthmet.2023.117362

    DOI: https://doi.org/10.1016/j.synthmet.2023.117362

    Kyutacar

    Other Link: https://www.sciencedirect.com/science/article/pii/S037967792300084X?via%3Dihub

  • 3. Design and Synthesis of Novel NIR Sensitive Unsymmetrical Squaraine Dyes for Molecular Photovoltaics Reviewed

    Safalmani Pradhan Yuki Kurokawa Shyam S Pandey

    Physica Status Solidi-A ( Wiley )   220 ( 24 )   2300145(1) - 2300145(10)   2023.04

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    Two novel near-infrared (NIR)-sensitive unsymmetrical squaraine dyes, SQ-258 and SQ-259, for their suitability as a sensitizer in dye-sensitized solar cells (DSSCs) are designed and synthesized, followed by photophysical and photovoltaic characterizations. It is demonstrated that introducing a 1,3-indandione acceptor unit in the central squaric acid core of SQ-259 leads to the suppression of dye aggregation owing to its nonplanar molecular geometry and the broadening of the optical absorption and photon-harvesting window up to 800 nm. Owing to the extended wavelength photon harvesting, SQ-259 improves the photoconversion efficiency (PCE) compared to its SQ-258 dye counterpart. However, despite its wide wavelength photon harvesting, the improvement in the PCE of SQ-259 is less pronounced, and this is attributed to the small driving force for injection of electrons (0.29 eV), hampered electronic coupling, and decreased electron lifetime for resistance to recombination (7.9 ms), which is confirmed by the cyclic voltammetry, quantum chemical calculation, and electrochemical impedance spectroscopic investigations, respectively.

    DOI: https://doi.org/10.1002/pssa.202300145

    DOI: https://doi.org/10.1002/pssa.202300145

    Kyutacar

  • Highly Conductive Graphenated-Carbon Nanotubes Sheet with Graphene Foliates for Counter Electrode Application in Dye-Sensitized Solar Cell Reviewed International journal

    Yusnita Yusuf, Suhaidi Shafie, Ismayadi Ismail, Fauzan Ahmad, Mohd Nizar Hamidon, Pandey Shyam Sudhir and Lei Wei

    Journal of Science and Technology ( UPM, Malaysia )   31 ( 3 )   2023.03

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    This work enlightened the synthesis of graphenated-carbon nanotubes sheet (g-CNT) using the floating-catalyst chemical vapor deposition method (FCCVD) for dye-sensitized solar cell (DSSC) application. The carbon injection flow rate in the experiment was varied to 6, 8, and 10 ml/h. The morphological findings revealed that the g-CNT formed a highly conductive network. Excellent conductivity was obtained for the sample g-CNT8 (34.5 S/cm) compared to the sample g-CNT6 (11.2S/cm) and CNT10 (4.76 S/cm). This excellent feature is due to the hybrid structure of the g-CNT8, which creates efficient electron transfer in the materials resulting in higher conductivity. The hybrid structure provides a high surface area that improves conductivity. Therefore, the g-CNT sheet is an excellent candidate to replace the conventional platinum used as a counter electrode (CE) in DSSC.

    DOI: 10.47836/pjst.31.3.12

    DOI: 10.47836/pjst.31.3.12

    Other Link: http://www.pertanika.upm.edu.my/pjst/browse/prepress-issue?article=JST-3570-2022

  • Optical and dielectric realisation of biomolecular detection using gold nanoparticles bio-conjugate with liquid crystal Reviewed International journal

    Lokesh K. Gangwar, Vikash Sharma, Amit Choudhary, Gajjala Sumana, Shyam .S. Pandey, Hirofumi Tanaka, Ashok M. Biradar, Rajesh

    Journal of Molecular Liquids ( Elsevier )   380   121754   2023.03

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    Dielectric biosensor based on nematic liquid crystal platform has been fabricated using sandwich immunoassay technique for the detection of a biomolecule, human cardiac troponin I (cTnI). The optical response of Liquid crystal (LC) biosensor and its corresponding frequency-dependent dielectric properties have been investigated as a function of cTnI concentration. Gold nanoparticles conjugate with detection antibody (AB-GNP) is used for the enhancement of both the optical and dielectric signal of the biosensor. AB-GNP binding with cTnI alter the surface energy of the substrate causing disturbances in LC alignment resulting in a change in transmission. The transmission of the LC cell has been found to be varying from dark to bright texture under polarized microscope as a function of cTnI concentration. A change in low-frequency permittivity with increasing cTnI concentration that forms an increasing order of sandwich immunocomplex with AB-GNP revealed an interfacial surface phenomenon. A positive shift in the onset frequency of permittivity is observed due accumulation of immunocomplex with increasing concentration of cTnI at electrode/LC interface. The dielectric response
    of the biosensor is fitted with Hill-Langmuir equation over a concentration range of 0.01 to 10 ng mL−1 cTnI. The dissociation constant ‘Kd’ of 1.02 ± 0.24 ng/mL−1 indicates strong cTnI binding affinity for substrate antibody. A nearby value of 1, calculated for Hill coefficient ‘n’ revealed no co-operativity characteristic of cTnI binding to the primary capture antibody, wherein each binding site of the antibody functions independently at the electrode surface, causing accumulation of charged species revealing LC interfacial surface electrical property.

    DOI: 10.1016/j.molliq.2023.121754

    DOI: 10.1016/j.molliq.2023.121754

    Other Link: https://www.sciencedirect.com/science/article/pii/S0167732223005573?via%3Dihub

  • Bifacial Dye-Sensitized Solar Cells Utilizing Visible and NIR Dyes: Implications of Dye Adsorption Behaviour Reviewed International journal

    Suraya Shaban, Ajendra K Vats, Shyam S Pandey

    Molecules ( MDPI )   28 ( 6 )   2784   2023.03

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    Bifacial dye-sensitized solar cells (DSSCs) were fabricated utilizing dye cocktails of two dyes, Z-907 and SQ-140, which have complementary light absorption and photon harvesting in the visible and near-infrared wavelength regions, for panchromatic photon harvesting. The investigation of the rate of dye adsorption and the binding strengths of the dyes on mesoporous TiO2 corroborated the finding that the Z-907 dye showed a rate of dye adsorption that was about >15 times slower and a binding that was about 3 times stronger on mesoporous TiO2 as compared to SQ-140. Utilizing the dye cocktails Z-907 and SQ-140 from ethanol, the formation of the dye bilayer, which was significantly influenced by the ratio of dyes and adsorption time, was demonstrated. It was demonstrated that the dyes of Z-907 and SQ-140 prepared in 1:9 or 9:1 molar ratios favoured the dye bilayer formation by subtly controlling the adsorption time. In contrast, the 1:1 ratio counterpart was prone to form mixed dye adsorption; the best performance of the BF-DSSCs was shown when a dye cocktail of Z-907 and SQ-140 in a molar 9:1 ratio was used to prepare a photoanode for 1 h of dye adsorption. The BF-DSSCs thus exhibited PCEs of 4.23% and 3.48% upon the front and rear side light illuminations, a cumulated PCE of 7.71%, and a very good BBF of 83%.

    DOI: https://doi.org/10.3390/molecules28062784

    DOI: https://doi.org/10.3390/molecules28062784

    Kyutacar

    Other Link: https://www.mdpi.com/1420-3049/28/6/2784

  • Bioactive potential of morin loaded mesoporous silica nanoparticles: A nobel and efficient antioxidant, antidiabetic and biocompatible abilities in in-silico, in-vitro, and in-vivo models Reviewed International journal

    Rout George Kerry, Kshitij RB Singh, Subhasis Mahari, Atala Bihari Jena, Bijayananda Panigrahi, Kahnu Charan Pradhan, Satyanarayan Pal, Bhagaban Kisan, Jagneshwar Dandapat, Jay Singh, Shyam S Pandey, Ravindra Pratap Singh, Sanatan Majhi

    Open Nano ( Elsevier )   10   100126   2023.02

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    Developing a delivery system has become crucial in engineering cutting-edge next-generation theranostic approaches. Therefore, in the present research work, a customized Mesoporous silica nanoparticle (MSiNPs) was designed by adapting the Stöber method with silane polymerization for Morin (MO) adsorption. The average size of MSiNPs was 50–130 nm as measured by TEM, while FE-SEM revealed a spherical surface shape. According to Raman and FTIR spectra, while the synthesis of MSiNPs, CTAB (a surfactant) was eliminated from MSiNPs, silane was functionalized, and with a loading efficiency of 10.28 ± 0.22%, MO was adsorbed. Molecular docking was used to perform in-silico studies to investigate the interaction of native MO with antidiabetic and antioxidant enzymes. Furthermore, the antioxidant and antidiabetic effects of both MO adsorbed MSiNPs, and native MO were examined in vitro, with the former showing promise even at lower concentrations than the latter. The cell survival experiment on Mouse macrophages RAW 264.7 and HCT cells revealed that MO adsorbed MSiNPs were nontoxic up to 15 μg/ml. The acute toxicity of different concentrations of MO adsorbed MSiNPs was also conducted in an in vivo model zebrafish (Danio rerio), where the study was conducted for about 96 h and evaluated for histological significance. The findings described above revealed that the MSiNPs were electrochemically, structurally, and thermally stable and MO adsorbed MSiNPs were nontoxic and biocompatible, implying that it might be an effective drug delivery vehicle for MO in the future. Moreover, in coming times, this nano-delivery system with effective biodistribution of the adsorbed MO could be explored as an antidiabetic and anti-cancer agent.

    DOI: https://doi.org/10.1016/j.onano.2023.100126

    DOI: https://doi.org/10.1016/j.onano.2023.100126

    Other Link: https://www.sciencedirect.com/science/article/pii/S2352952023000063

  • Improving vertical charge transport in organic Schottky diodes via Interface engineering of large-area conducting polymer thin films fabricated on hydrophilic liquid surface of tunable surface energy Reviewed International journal

    Subhajit Jana, Nikita Kumari, Shyam S Pandey, Rajiv Prakash

    Applied Surface Science ( Elsevier )   616   156377   2023.01

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    Molecular orientation and stacking genre proved to be one of the decisive factors for the performance of conducting polymer (CP) based electronic devices. In this context, harnessing the key advantages of the ribbon shaped “floating-film transfer method” (FTM) along with an interfacial engineering approach has been utilized for molecular rearrangement in polymer thin-films formed on the surface of a high surface energy hydrophilic liquid mixture. In this novel subphase modified floating-film transfer method (SM-FTM), dodecyl benzene sulfonic acid (DBSA) has been used to control the molecular backbone stacking proximate to the solution-liquid interface and regioregular-poly(3-hexylthiophen-2,5-diyl) (rr-P3HT) was used as the model CP to probe the polymer-DBSA interaction. The molecular arrangements in microcrystalline domains, electronic band structures, and the evolution of surface texture at the solution-liquid interface have been investigated through multiple characterization tools. After that, the electrical performances of Schottky barrier diodes (SBDs) were studied in an ITO/P3HT/AlOx/Al sandwiched structure and a dramatic enhancement of rectification ratio up to 8.2 × 106 at ± 6 V was achieved. Further, an analytical model for SM-FTM, developed using lubrication theory and thin-film dynamics, has also been presented to elucidate the polymer spreading dynamics and the mechanism of molecular rearrangement at the interface.

    DOI: https://doi.org/10.1016/j.apsusc.2023.156377

    DOI: https://doi.org/10.1016/j.apsusc.2023.156377

    Other Link: https://www.sciencedirect.com/science/article/pii/S0169433223000533

  • Cylindrical transparent conductive oxide-free dye-sensitized solar cells with treated flat titanium sheet Reviewed International journal

    Azwar Hayat, Ajay Kumar Baranwal, Masaki Nakamura, Fujisawa Shigeki, Shyam S Pandey, Shuzi Hayase

    Journal of Photonics for Energy ( SPIE )   2022.12

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    Conventional dye-sensitized solar cells (DSSCs) require two transparent conductive oxide (TCO) glasses as working and counter electrodes and are one of the most costly components posing an appreciable cost burden for production and commercialization. To circumvent this issue, we propose a TCO-free device structure utilizing titanium (Ti) sheets as a substitute for TCO. This back contact device structure not only allows the removal of the costly TCO component from the working electrode but also enhances the extent of photons absorbed by the photoanode. A flat titanium sheet with microholes (FTS-MH) was successfully applied to fabricate cylindrical TCO-free-DSSCs) with a titanium sheet as a back contact electrode. When the H2O2 surface-treated FTS-MH substrate generating dense anatase TiO2 nanosheets was used as a photoanode, there was a pronounced improvement in efficiency from 5.76% to 8.59%. This was mainly attributed to the lower interfacial resistance facilitated by improved electrical contact between the conducting FTS-MH substrate and mesoporous TiO2 layer since enhancement in the dye loading was only 8.6%.

    DOI: https://doi.org/10.1117/1.JPE.12.045502

    DOI: https://doi.org/10.1117/1.JPE.12.045502

    Other Link: https://www.spiedigitallibrary.org/journals/journal-of-photonics-for-energy/volume-12/issue-4/045502/Cylindrical-transparent-conductive-oxide-free-dye-sensitized-solar-cells-with/10.1117/1.JPE.12.045502.short

  • Controlling the molecular orientation of a novel diketopyrrolopyrrole-based organic conjugated polymer for enhancing the performance of organic field-effect transistors Reviewed International journal

    Moulika Desu, Shubham Sharma, Kuang-Hao Cheng, Yu-Han Wang, Shuichi Nagamatsu, Jyh-Chien Chen, Shyam S Pandey

    Organic Electronics ( Elsevier )   113   106691   2022.11

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    A novel organic conjugated copolymer p(DPP-BZC) was utilized as a solution-processable organic semiconductor and its large area of the unidirectionally oriented thin film was fabricated by the Ribbon-shaped floating film transfer (FTM) method. Organic field-effect transistors (OFETs) fabricated using oriented thin films of this polymer demonstrated a clear p-type semiconducting behaviour and anisotropic charge carrier transport. A maximum orientation with a dichroic ratio of 5.1 was obtained in the FTM-processed thin film under optimized condition with liquid substrate viscosity, temperature and polymer solution concentration of 6.12 cst, 50 °C and 3% (w/v), respectively. Out-of-plane XRD and in-plane GIXD results revealed that oriented thin films of this copolymer are semicrystalline and adopt purely edge-on conformation. The implication of surface modification of Si/SiO2 gate dielectric utilizing HMDS. OTS and CYTOP on the charge carrier transport revealed that substrate with high-surface-energy hampers the on/off ratio, operating voltage and charge carrier mobility (μ). On the other hand, Si/SiO2 substrate treated with CYTOP having relatively lower surface energy demonstrated the best device performance with the highest μ of 2.7 x 10−2 cm2/Vs, which is > 30 times higher as compared to that of its non-oriented spin-coated device counterparts an μ of 8.0 x 10−4 cm2/V

    DOI: https://doi.org/10.1016/j.orgel.2022.106691

    DOI: https://doi.org/10.1016/j.orgel.2022.106691

    Kyutacar

    Other Link: https://www.sciencedirect.com/science/article/pii/S1566119922002634

  • Mechanical Modelling and Stress-Strain Prediction of Electroactive Polymer-Based Capacitive Sensor under Multiaxial Loads using Uniaxial Tensile Data Reviewed International journal

    Nitin Kumar SINGH, Kazuto TAKASHIMA and Shyam S. PANDEY

    Sensors and Transducers ( IFSA Publishing )   259 ( 5 )   12 - 18   2022.10

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    Authorship:Last author, Corresponding author   Language:English   Publishing type:Research paper (international conference proceedings)

    In this paper, mechanical modelling and stress-strain prediction of the ionic type of electroactive polymer (EAP)
    based capacitive strain sensor under multiaxial loading has been performed using uniaxial tensile data. A highly stretchable
    sensor with > 400 % strain was fabricated using Styrene-ethylene-butylene-styrene (SEBS) rubber and Dodecyl benzene
    sulphonic acid (DBSA) doped polyaniline (PANI) composite material as a dielectric film, and carbon grease as top and bottom
    electrodes. From uniaxial tensile measurements, a three-dimensional constitutive model of the EAP strain sensor was validated.
    Experimental data obtained from the uniaxial tensile measurement was fitted according to the Ogden-based constitutive
    mathematical model. For predicting the stress-strain behaviour of the sensor under the multiaxial loads, 2nd term of the Ogden
    model was demonstrated to fit well with uniaxial tensile data. Such modelling can play a significant role in designing any type
    of EAP-based sensor for various operations under variable loading conditions.

    Other Link: https://www.sensorsportal.com/HTML/DIGEST/october_2022/Vol_259/P_3275.pdf

  • Unraveling the Implications of Macromolecular Orientation on the Planar and Vertical Charge Transport in Organic Electronic Devices Reviewed International journal

    Shubham Sharma, Ajendra Kumar Vats, Manish Pandey, Shuichi Nagamatsu, Jyh-Chien Chen, Shyam S Pandey

    ACS Applied Polymer Materials ( American Chemical Society )   4 ( 11 )   8315 - 8323   2022.10

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    The role of film morphology of conjugated polymers (CPs) and their macromolecular conformation with respect to the substrate in governing charge transport and overall device performances has been a matter of debate. The nature of the macromolecular orientation of CPs in thin films has a pivotal role in controlling the performance of planar and sandwich devices. Thin-film characterizations unveiled that spin-coated films are isotropic with mixed edge-on/face-on conformation, whereas unidirectional floating film transfer method (UFTM) films are anisotropic with edge-on-oriented micrometer-sized ordered domains. To unravel the explicit role of molecular orientation on device performance, two types of devices, organic Schottky diodes (OSDs) for out-of-plane carrier transport and organic field-effect transistors (OFETs) for in-plane charge transport, were fabricated and characterized. Isotropic and relatively low crystalline spin-coated films exhibited superior transport characteristics in the out-of-plane direction than UFTM films irrespective of the crystallinity. On the other hand, edge-on-oriented UFTM thin films demonstrated remarkably enhanced in-plane charge transport with more than two orders of magnitude of enhancement in the field-effect mobility. The nature of molecular orientation of different films is significantly correlated with the performance of the OSDs and OFETs.

    DOI: https://doi.org/10.1021/acsapm.2c01283

    DOI: https://doi.org/10.1021/acsapm.2c01283

    Kyutacar

    Other Link: https://pubs.acs.org/doi/full/10.1021/acsapm.2c01283

  • Synthesis and Characterization of Newly Designed and Highly Solvatochromic Double Squaraine Dye for Sensitive and Selective Recognition towards Cu2+ Reviewed

    Linjun Tang, Shubham Sharma, Shyam S Pandey

    Molecules ( MDPI )   27 ( 19 )   6578   2022.10

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    Synthesis and characterization of a novel and zwitterionic double squaraine dye (DSQ) with a unique D-A-A-D structure is being reported. Contrary to the conventional mono and bis-squaraine dyes with D-A-D and D-A-D-A molecular frameworks reported so far, DSQ dye demonstrated strong solvatochromism allowing for the multiple ion sensing using a single probe by judicious selection of the suitable solvent system. The DSQ dye exhibited a large solvatochromic shift of about 200 nm with color changes from the visible to NIR region with metal ion sensitivity. Utilization of a binary solvent consisted of dimethylformamide and acetonitrile (1:99, v/v), highly selective detection of Cu2+ ions with the linearity range from 50 μM to 1 nM and a detection limit of 6.5 × 10−10 M has been successfully demonstrated. Results of the Benesi–Hildebrand and Jobs plot analysis revealed that DSQ and Cu2+ ions interact in the 2:1 molecular stoichiometry with appreciably good association constant of 2.32 × 104 M−1. Considering the allowed limit of Cu2+ ions intake by human body as recommended by WHO to be 30 μM, the proposed dye can be conveniently used for the simple and naked eye colorimetric monitoring of the drinking water quality.

    DOI: https://doi.org/10.3390/molecules27196578

    DOI: https://doi.org/10.3390/molecules27196578

    Other Link: https://www.mdpi.com/1420-3049/27/19/6578

  • Electronic versus Ionic Electroactive Polymers (EAPs) Strain Sensors for Wearable Electronics: A Comparative Study Reviewed

    Nitin Kumar Singh, Kazuto Takashima, Shyam Sudhir Pandey

    Engineering Proceedings ( Multidisciplinary Digital Publishing Institute )   21 ( 1 )   2022.08

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    Electroactive polymer (EAP) strain sensors have gained appreciable attention as a potential candidate for their application in the area of soft electromechanical devices and have been widely used in soft robotics, healthcare, augmented reality, and wearable devices. In this research, a systematic comparison has been made by fabricating the electronic and ionic types of capacitive EAP strain sensors. To accomplish this, a combination of silicone rubber sandwiched between silver-coated stretchable fabric electrodes is used as an electronic type of EAP sensor, while a conducting and stretchable freestanding film consisting of Styrene-ethylene-butylene-styrene (SEBS) rubber and dedocyl benzene sulfonate acid (DBSA) doped polyaniline composite film sandwiched between carbon grease electrodes is chosen as an ionic type of EAP sensor. Mechanical characterization in terms of the uniaxial tensile testing was …

    DOI: https://doi.org/10.3390/engproc2022021001

    DOI: https://doi.org/10.3390/engproc2022021001

    Other Link: https://www.mdpi.com/2673-4591/21/1/1

  • Fabrication, characterization and modelling of the fabric electrode-based highly stretchable capacitive strain sensor Reviewed

    Nitin Kumar Singh, Kazuto Takashima, Shyam S Pandey

    Materials Today Communications ( Elsevier )   32   104095   2022.07

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    Highly stretchable and capacitance-based strain sensors were fabricated utilizing highly stretchable silicone elastomer as dielectric film sandwiched between the conducting and stretchable cloth-based top and bottom electrodes. Electromechanical characterizations for the proposed sensor after multiple and reversible loading and unloading cycles up to 150% applied strain were conducted followed by the modelling of the sensing performance. It has been shown that the sensor exhibits reproducible electromechanical performance under multiple reversible stretching and relaxation cycles. There was a very small deviation (< 10%) in the observed values of the capacitance upon the applied strain of 150% up to the 1000 loading and unloading cycles. Tensile measurement for the sensor under various applied strains, not only exhibits almost constant force indicating negligible Mullins effect and negligible time-dependent changes at a fixed strain up to 100% suggesting that viscoelastic losses can also be neglected. From uniaxial tensile experiments, constitutive model of the dielectric elastomer sensor was validated. For the fitting of the experimental data obtained from the uniaxial tensile measurement, a variety of strain energy formulations have been compared for predicting the constitutive behaviour of sensor using the Mooney– Rivlin, Neo-Hookean, Yeoh and Ogden models, where 2nd term of the Ogden model was found to explain the experimental tensile data most accurately. To explain some observed losses at 150% of applied strain, the Prony series-based time dependent model was used for predicting stress at any value of time and it was found that experimental data was well fit with 4th order of Prony series.

    DOI: https://doi.org/10.1016/j.mtcomm.2022.104095

    DOI: https://doi.org/10.1016/j.mtcomm.2022.104095

    Other Link: https://www.sciencedirect.com/science/article/pii/S2352492822009473

  • Fabrication and Characterization of Oriented Thin Films of DPP-based Conjugated Copolymer Prepared by Friction Transfer Method Reviewed

    Yuki Kurokawa, Ajendra K Vats, Shuichi Nagarnatsu, Shyam S Pandey

    IEEE Explore ( IEEE )   124 - 127   2022.07

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    Japan   http://www.amfpd.jp/   2022.07.05  -  2022.07.08

    DOI: 10.23919/AM-FPD54920.2022.9851297

    DOI: 10.23919/AM-FPD54920.2022.9851297

    Other Link: http://www.amfpd.jp/

  • Interplay of viscosities in controlling the orientation of conjugated polymer thin films fabricated by floating film transfer method Reviewed

    Shubham Sharma, Ajendra K Vats, Shuichi Nagamatsu, Shyam S Pandey

    IEEE Explore ( IEEE )   116 - 119   2022.07

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    Japan   http://www.amfpd.jp/   2022.07.05  -  2022.07.08

    DOI: 10.23919/AM-FPD54920.2022.9851340

    DOI: 10.23919/AM-FPD54920.2022.9851340

    Other Link: http://www.amfpd.jp/

  • Tear strength estimation of electroactive polymer-based strain sensors Reviewed

    Nitin Kumar Singh, Kazuto Takashima, Shyam Sudhir Pandey

    Electroactive Polymer Actuators and Devices (EAPAD) XXIIV ( SPIE )   12042   424 - 428   2022.04

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    USA   https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12042/1204217/Tear-strength-estimation-of-electroactive-polymer-based-strain-sensors/10.1117/12.2627807.short  

    Electroactive polymer-based sensors are subjected to repeated loading and unloading cycles under variable applied strains and estimation of the tear strength plays a critical role in determining durability. A trouser type of specimen made from conducting and stretchable freestanding films consisting of SEBS rubber and dodecyl benzenesulfonic acid (DBSA) doped polyaniline composite was used for fabricating the capacitive strain sensor and tear strength estimation. Strain energy density for the composite film was calculated from the tear test data aiming towards the prediction of the life of the specimen. Our results revealed a very high value (150 newton/mm) of tear strength, leading to the sustainability of the film up to millions of cycles.

    DOI: https://doi.org/10.1117/12.2627807

    DOI: https://doi.org/10.1117/12.2627807

    Other Link: https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12042/1204217/Tear-strength-estimation-of-electroactive-polymer-based-strain-sensors/10.1117/12.2627807.short

  • Computational molecular design of NIR dyes with varying anchoring groups for improving the efficiency and stability of dye-sensitized solar cells Reviewed International journal

    Pandey S.S., Vats A.K., Tang L., Hayase S.

    Japanese Journal of Applied Physics   61 ( SB )   SB1021-1 - SB1021-11-   2022.01

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    DOI: 10.35848/1347-4065/ac28e8

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  • Charge transfer and catalytic properties of various PEDOTs as Pt-free counter electrodes for dye-sensitized solar cells Reviewed International journal

    Yuki Kurokawa, Ajendra Kumar Vats, Takehito Kato, Suhaidi Shafie, Shyam S. Pandey

    Japanese Journal of Applied Physics   61 ( SB )   SB1010-1 - SB10110-6   2022.01

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    DOI: https://doi.org/10.35848/1347-4065/ac2cf8

    DOI: https://doi.org/10.35848/1347-4065/ac2cf8

    Other Link: https://iopscience.iop.org/article/10.35848/1347-4065/ac2cf8

  • Recent progress in the macroscopic orientation of semiconducting polymers by floating film transfer method, Reviewed International journal

    Manish Pandey, Vipul Singh, Chandan Kumar, Shyam S. Pandey, and Masakazu Nakamura

    Japanese Journal of Applied Physics   61 ( SB )   SB0801-1 - SB0801-12   2022.01

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    DOI: https://doi.org/10.35848/1347-4065/ac2f20

    DOI: https://doi.org/10.35848/1347-4065/ac2f20

    Other Link: https://iopscience.iop.org/article/10.35848/1347-4065/ac2f20

  • Bifacial dye-sensitized solar cells utilizing green colored NIR sensitive unsymmetrical squaraine dye Reviewed International journal

    Suraya Shaban, Pritha Roy, Ajendra K. Vats and Shyam S. Pandeyy

    Japanese Journal of Applied Physics   61 ( SB )   SB1005-1 - SB1005-6   2022.01

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    DOI: https://doi.org/10.35848/1347-4065/ac3570

    DOI: https://doi.org/10.35848/1347-4065/ac3570

    Other Link: https://iopscience.iop.org/article/10.35848/1347-4065/ac3570

  • A COMPARATIVE STUDY OF GRAPHENATED-CARBON NANOTUBES COTTON AND CARBON NANOTUBES AS CATALYSTS FOR COUNTER ELECTRODE IN DYE-SENSITIZED SOLAR CELLS Reviewed International journal

    Yusnita Yusuf, Suhaidi Shafie, Ismayadi Ismail, Fauzan Ahmad, Mohd Nizar Hamidon, Shyam S Pandey, Nazalea Yazmin Muhammad, Wei Lei

    Malaysian Journal of Microscopy   2021.12

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    This work reports a comparative study of synthesized graphenated-carbon nanotubes cotton (g-CNTC), standard carbon nanotubes (CNTP), and conventional platinum (Pt) thin layer which are employed as the counter electrodes in dye-sensitized solar cells (DSSC). The g-CNTC was synthesized via the floating-catalyst chemical vapor deposition (FCCVD) method. Subsequently, the g-CNTC was made into a uniform paste and deposited for the counter electrode layer. The results obtained from FESEM/TEM, Raman spectroscopy, CV and I-V measurements respectively exposed the structural, graphitization and I-V characteristics. Briefly, the morphology of g-CNTC showed the growth of graphene foliates out-sidewalls of CNT with a diameter of 40 nm. The graphitization of g-CNTC showed two dominant peaks namely the D (1355 cm-1) and G (1608 cm-1) bands with strong intensities. The g-CNTC counter electrode provided good electrical conductivity (3.66×10-3 to 6.45×10-3 S/cm), which is a significant feature to employ counter electrodes to enhance DSSC performance. In addition, the g-CNTC counter electrode offered an excellent catalytic activity for iodide/triiodide reaction and exhibited 3.49 % of photovoltaic conversion energy, which was much higher compared to CNTP (2.93 %) and platinum (3.12 %), respectively.

    Other Link: https://malaysianjournalofmicroscopy.org/ojs/index.php/mjm/index

  • Highly sensitive organic phototransistors fabricated from PCPDTBT: PCBM blend Reviewed International journal

    Yadav N., Kumari N., Ando Y., Pandey S.S., Singh V.

    Journal of Physics: Conference Series   2070 ( 1 )   2021.11

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    DOI: 10.1088/1742-6596/2070/1/012040

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  • Implication of color of sensitizing dyes on transparency and efficiency of transparent dye-sensitized solar cells Reviewed International journal

    Roy P., Vats A.K., Tang L., Pandey S.S.

    Solar Energy   225   950 - 960   2021.09

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    DOI: 10.1016/j.solener.2021.08.014

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  • Investigation of Orientation in the Thin Films of Conjugated Polymer and NIR Dye Blends Fabricated by Friction Transfer Method Reviewed

    Yuki Kurokawa, Shuichi Nagamatsu, Shyam S Pandey

    IEEE Explore ( IEEE )   2021.08

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    Japan   Conference: 28th International Workshop on Active Matrix, Flatpanel Displays and Devices (AM-FPD21)A   2021.06.29  -  2021.07.02

    Improved film's crystallinity and facile charge transport has been well demonstrated by orienting conjugated polymers using solution based thin film fabrication followed by thermal annealing, need for huge halogenated solvents and high temperature annealing are stumbling block for industrially viable large area thin film fabrication. Herein, we report the fabrication of oriented thin films regioregular P3HT by solvent-free friction transfer (FT) technique and enhancement its further enhancement by adding NIR sensitive squaraine dyes. Apart from assisting the molecular orientation of P3HT, it has been demonstrated that dye molecules are also get oriented and a synergistic match between the alkyl chains of the polymer and dye molecule leads to promotion for the extent of the molecular orientation in the dye molecules.

    DOI: 10.23919/AM-FPD52126.2021.9499214

    Other Link: https://ieeexplore.ieee.org/document/9499214

  • Extreme Orientational Uniformity in Large-Area Floating Films of Semiconducting Polymers for Their Application in Flexible Electronics Reviewed

    Manish Pandey, Heriyanto Syafutra, Nikita Kumari, Shyam S. Pandey, Ryo Abe, Hiroaki Benten, and Masakazu Nakamura

    ACS Applied Materials & Interfaces ( American Chemical Society )   2021.08

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    Layer-by-layer fabrication of uniformly oriented thin films over large areas by cost-effective solution-based approaches can open new horizons for the realization of high-performance organic circuits in various applications. In this work, fabrication of a large-area ≈40 cm2 film with uniform orientation is reported for poly(3,3‴-dialkylquaterthiophene) (PQT) using a unidirectional floating film transfer method (UFTM). Orientation characteristics and charge transport anisotropy were analyzed using polarized UV–vis spectral mapping and fabrication of bottom-gated organic field-effect transistors (OFETs) from different regions. Films were found to be highly oriented with an optical dichroic ratio of ca. 15. Orientation characteristics reveal that films were highly oriented along the width of the film, covering >70% of the area, and angle-dependent field-effect mobilities are in good agreement with the orientation of the polymer backbones. These highly oriented films resulted in charge transport anisotropy of 8.9. An array of bottom-gated OFETs fabricated along the length of single large-area (≈15 × 2.5 cm2) thin film demonstrated the average field-effect mobility of 0.0262 cm2/(V s) with a very narrow standard deviation of 12.6%. We also demonstrated that film thickness can be easily tuned from 5.6 to 45 nm by increasing the PQT concentration, and field-effect mobility is highly reproducible even when the film thickness is 10 nm. Microstructural characterization of the thus-prepared large-area thin films revealed the edge-on stacked polymer backbones and surface roughness of <1 nm as probed by grazing incidence X-ray diffraction and atomic force microscopy, respectively. Flexible OFETs with bottom-gate top-contact geometry were also fabricated, having average field-effect mobility of 0.0181 cm2/(V s). There was no considerable change in mobility after bending the flexible devices at different radii.

    DOI: 10.1021/acsami.1c09671

    Other Link: https://pubs.acs.org/doi/abs/10.1021/acsami.1c09671

  • Assisted alignment of conjugated polymers in floating film transfer method using polymer blend Reviewed

    Heriyanto Syafutra, Manish Pandey, Nikita Kumari, Shyam S Pandey, Hiroaki Benten, Masakazu Nakamura

    Thin Solid Films ( Elsevier )   734   138814(1) - 138814(8   2021.07

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    Orientating conjugated polymers (CPs) in thin films is an attractive technique for obtaining anisotropic properties, resulting in improved device performances. Template-assisted alignment using pre-patterned substrates has been widely used to orient various polymers irrespective of their orientation capability. In this work, we report that using the floating film transfer method, the orientation of guest polymers can be in-situ assisted via blending with a host polymer during film fabrication. Dichroic Ratio (DR) of two guest CPs such as poly[2,5-(2-octyldodecyl)-3,6-diketopyrrolopyrrole-alt-5,5-(2,5-di(thien-2-yl)thieno[3,2-b]thiophene)] and poly(9,9-di-n-octylfluorenyl-2,7-diyl) were found to be enhanced when blended with host polymer poly(3,3‴-didodecyl-quaterthiophene) (PQT). DR of the host PQT decreases monotonically with an increase in the guest polymer proportion, suggesting that guest polymers are well mixed in the host matrix. The electronic absorption spectra and atomic force microscopy results revealed that blended polymers were well mixed without any phase separation. DR of the guest polymers in the blend was the same even when the overall blend concentration was increased twice to increase the overall film thickness.

    DOI: 10.1016/j.tsf.2021.138814

    Other Link: https://www.sciencedirect.com/science/article/pii/S0040609021002972

  • Development of High-Sensitivity Poly (2, 7-(9, 9-dioctylfluorene)-alt-5, 5-(4', 7'-di-2-thienylbenzo [c][1, 2, 5] thiadiazole)) Thin-Film-Based Phototransistors by the Ribbon-Floating Film Transfer Method Reviewed International journal

    Nidhi Yadav, Nikita Kumari, Yoshito Ando, Shyam S. Pandey, and Vipul Singh

    Physica Status Solidi (RRL) - Rapid Research Letters ( WILEY-V CH VERLAG GMBH )   2021.06

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    Alignment of polymer chains hold key to development of highly functional polymer based field effect transistors. Our recently developed ribbon-floating film transfer method (ribbon-FTM) has the potential for development of polymer thin films with highly aligned chains which are desirable for fabrication of efficient planar devices. These thin films consisting of well aligned polymer chains exhibit high degree of optical and electronic anisotropies. In this work we report ribbon-FTM processed thin film based organic photosensitive transistors of PFO-DBT. Under optimized fabrication conditions polymer FETs based on PFO-DBT demonstrated a charge carrier mobility of 0.002 cm²/Vs and an on-off ratio of 5 × 10⁴ under dark conditions. The devices have further demonstrated a Photosensitivity of ∽10⁴ and 10³ and a high Responsivity of 8.37 A/W and 4.6 A/W against green and red light illuminations, respectively. The results hold promise for development of conducting polymer based high performance photosensitive OFETs. This article is protected by copyright. All rights reserved.

    DOI: 10.1002/pssr.202100185

    Other Link: https://onlinelibrary.wiley.com/doi/epdf/10.1002/pssr.202100185

  • Probing the metal/conducting polymer interface and implications of the metal diffusion in two-terminal sandwich devices Reviewed International journal

    Nidhi Yadav, Nikita Kumari, Yoshito Ando, Shyam S Pandey, Vipul Singh

    Synthetic Metals ( Synthetic Metals )   278   116797(1) - 116797(11)   2021.05

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    In this article, we have investigated the role of polymer regio-regularity and film fabrication technique in reducing metal diffusion from top electrodes in sandwich type devices. Poly(3-hexyl thiophene)(P3HT) polymer of varying regio-regularity was chosen for investigation and its corresponding thin films were fabricated by spin-coating(SC) and floating film transfer method(FTM). Sandwich devices with a top interface between gold and i) FTM coated regio-regular (rr) P3HT, ii) FTM coated non-regiocontrolled (nr) P3HT, iii) SC nr-P3HT and iv) SC rr-P3HT were fabricated. The current density vs voltage (J-V) characteristics of the devices revealed non-ohmic characteristics. Estimation of interfacial hole barrier heights using Fowler Nordheim tunneling model revealed a small barrier of 1.12 eV for the isotropic spin-coated nr-P3HT film which increased to 1.37 eV with an increase in film anisotropy for the FTM nr-P3HT film. The barrier height also gradually declined from 1.37 eV to 1.05 eV with increase in regioregularity from FTM nr-P3HT to FTM rr-P3HT. These observations were confirmed through optical and structural characterizations along with depth profiling of metal diffusion using XPS. Pronounced Au diffusion to a higher depth was observed in the XPS results for the highly anisotropic FTM film that decreased subsequently with decrease in anisotropy from FTM to spin-coated film. It was thus deduced that a judicious selection of fabrication technique and polymer aids in reducing metal diffusion leading to improved device performance. The results hold crucial significance towards the fabrication of efficient organic photodetectors that have a sandwich type device architecture.

    DOI: 10.1016/j.synthmet.2021.116797

    Other Link: https://www.sciencedirect.com/science/article/pii/S0379677921001028

  • Development of PCPDTBT thin film based highly sensitive organic phototransistors Reviewed International journal

    Nidhi Yadav, Nikita Kumari, Shyam S Pandey, Vipul Singh

    Materials Today' Proceeding ( Elsevier )   2021.04

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    In this report, we have proposed a novel ribbon-FTM method to develop highly oriented polymer thin films. A donor–acceptor (D-A) type copolymer, PCPDTBT has been selected as the target material for investigation. The maximally oriented film showcased a DR of 4.1. Highly aligned polymer film was used as the active layer for the development of bottom gate bottom contact (BGBC) type OFETs. An average mobility and an Ion/Ioff of 0.002 cm2/Vs and 5 × 103 were obtained under dark conditions, respectively. Upon illumination with monochromatic green light (λ = 522 nm, Pin = 0.5 mW/cm2), the OPTs showcased a high photosensitivity and responsivity of 103 and 17 A/W, respectively. The obtained values were found to be superior over many of the previously reported similar OPTs which employed other organic polymers. The results thus are of crucial significance with respect to the development of facile, cost effective and highly sensitive single polymer thin film based OPTs.

    DOI: 10.1016/j.matpr.2021.03.468

    Other Link: https://www.sciencedirect.com/science/article/pii/S2214785321025232?via%3Dihub

  • Fatigue life prediction of electroactive polymer strain sensor Reviewed

    Nitin Kumar Singh, Kazuto Takashima, Shyam Sudhir Pandey

    Electroactive Polymer Actuators and Devices (EAPAD) XXIII ( International Society for Optics and Photonics )   11587   115871Z(1) - 115871Z(7)   2021.03

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    USA   Sandiego, California   2021.03.22  -  2021.03.27

    Electroactive polymers strain sensors bear a great potentiality in the area of soft robotics, wearable devices, and fitness industries. A small initial defect present in such sensor may grow to a critical size during contraction and relaxation cycles leading to mechanical failure, therefore, prediction of fatigue life is inevitable. The crack growth approach is one of the amicable ways to estimate the fatigue life considering parameters like tear energy, crack geometry, and power law. In this work, crack growth approach based on power law is being proposed to predict fatigue life utilizing conducting and stretchable freestanding films consisted of SEBS rubber and dodecyl benzenesulfonic acid (DBSA) doped polyaniline composite. Utilizing this crack growth model for the prediction of fatigue life exhibited that such films can sustain more than a million cycles even at a large value of deformation.

    DOI: 10.1117/12.2584521

    Other Link: https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11587/115871Z/Fatigue-life-prediction-of-electroactive-polymer-strain-sensor/10.1117/12.2584521.short

  • PCPDTBT copolymer based high performance organic phototransistors utilizing improved chain alignment Reviewed International journal

    Nidhi Yadav, Nikita Kumari, Yoshito Ando, Shyam S Pandey, Vipul Singh

    Optical Materials ( Elsevier )   113   110886(1) - 110886(9)   2021.03

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    In this article, we report single component thin film based organic phototransistors (OPTs) developed using the novel ribbon-floating film transfer method (ribbon-FTM). A low band-gap copolymer, poly[2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b']dithiophene)-alt-4,7-(2,1,3-benzothiadiazole)] (PCPDTBT) has been employed to develop the photoactive thin films of the devices. The fabricated polymer films were highly anisotropic in nature. To investigate the effect of film anisotropy on the device performance, organic field effect transistors (OFETs) were fabricated in two configurations namely, parallel and perpendicular, wherein the polymeric chains were oriented in line and orthogonal to the transistor channel direction, respectively. Notable differences in charge carrier mobility and device on-off ratios were observed among the two sets of devices. An on-off ratio of 4.1 × 103 and an average mobility of 0.001 cm2/V were observed in case of the perpendicular oriented OFETs which were increased to 105 and 0.003 cm2/V for the parallel oriented OFETs. A probe into the contact resistance at the respective metal/polymer interfaces of the devices was carried out using the modified transmission line method (MTLM). 4 times lower contact resistance was observed in the parallel OFET which was anticipated to be responsible for its superior performance. Further, the fabricated devices were illuminated with monochromatic red light (Pin = 0.4 mW/cm2) to observe their performance as phototransistors. Appreciable values of photosensitivity (2 × 104) and photoresponsivity (17.6 A/W) were obtained for the parallel OPTs which were found to be much higher than those of the previously reported thin film based OPTs employing other materials fabricated through conventional film coating techniques. The results presented in this report are of key significance towards the development of highly sensitive and cost-effective phototransistors which can be used in opto-sensing and imaging applications.

    DOI: 10.1016/j.optmat.2021.110886

    Other Link: https://www.sciencedirect.com/science/article/pii/S0925346721000872

  • Investigation of Orientation in the Thin Films of Conjngated Polymer and NIR Dye Blends Fabricated by Friction Transfer Method Reviewed International journal

    Kurokawa Y., Nagamatsu S., Pandey S.S.

    Proceedings of AM-FPD 2021 - 28th International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials   96 - 99   2021.01

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  • Unravelling the bottleneck of phosphonic acid anchoring groups aiming toward enhancing the stability and efficiency of mesoscopic solar cells Reviewed International journal

    Vats A.K., Roy P., Tang L., Hayase S., Pandey S.S.

    Frontiers of Chemical Science and Engineering   16 ( 7 )   1060 - 1078   2021.01

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    DOI: 10.1007/s11705-021-2117-z

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  • Solvent-Assisted Friction Transfer Method for Fabricating Large-Area Thin Films of Semiconducting Polymers with Edge-On Oriented Extended Backbones Reviewed

    Kumari N., Pandey M., Syafutra H., Nagamatsu S., Nakamura M., Pandey S.S.

    ACS Applied Materials and Interfaces   12 ( 49 )   55033 - 55043   2020.12

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    © Recent past has witnessed huge scientific efforts aiming toward enhancing in-plane charge transport by unidirectional orientation of conjugated polymer (CP) backbones adopting various techniques. However, in most of the existing methods, excess amounts of toxic halogenated solvents and preaggregation in solution are inevitable, which are the main bottlenecks toward large-scale fabrication. Solvent-assisted friction transfer (SAFT) is being reported as a novel method and improvisation over conventional friction transfer to expand its versatility. In this method, application of a small amount of the solvent (∼3 μL) during drawing not only leads to the entirely changed film morphology and molecular orientation but also addresses the existing substrate compatibility issues. Utilizing poly[2,5-bis(3-tetradecylthiophen-2-yl)thieno[3,2-b]-thiophene] as a representative CP under SAFT technique, films with extended backbone and edge-on orientation was successfully fabricated, which was confirmed by various characterization tools such as X-ray diffraction, polarized absorption, and polarized Raman spectroscopies. Further, anisotropic charge transport in these films was investigated by fabricating organic field-effect transistors and the role of contact resistance was also studied. Slight solvent use, compatibility with various substrates, and film fabrication with controlled orientation, and after validation of its generality on different CPs, SAFT can be expected to open new avenues in the area of printed electronics.

    DOI: 10.1021/acsami.0c14874

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  • Comprehensive performance analysis of dye-sensitized solar cells using single layer TiO<inf>2</inf> photoanode deposited using screen printing technique Reviewed

    Khalifa A., Shafie S., Hasan W.Z.W., Lim H.N., Rusop M., Pandey S.S., Vats A.K., AlSultan H.A., Samaila B.

    Optik   223   2020.12

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    © 2020 Elsevier GmbH A single-layer N719 sensitized nanocrystalline TiO2 films have been successfully deposited on FTO-coated glass substrates using the screen-printing technique with four different thicknesses (10, 12, 14 and 18 μm) and used as simple and low cost photoanodes for dye-sensitized solar cells (DSSCs). The thickness was controlled by adjusting the distance between the screen-printing mesh and the FTO-coated substrate using the two height control bolts. The films were deposited using one-time screen-printing method. So that the multiple screen-printing and annealing cycles can be reduced. Furthermore, the cell fabrication time was reduced as well as the problem of recombination at the interfacial layers between the TiO2 films was avoided. The thickness of the TiO2 films was measured by the surface profilometer. The prepared photoanode samples were characterized using FESEM, EDX, AFM, and UV–vis-NIR spectroscopies. The ruthenium dye soaking time was optimized at 48 h. The photovoltaic parameters such as short circuit current density (Isc), open-circuit voltage (Voc), fill factor (FF) and power conversion efficiency (η) were measured for fabricated cells at room temperature under one sunlight 100 mW/cm2 illumination using the solar simulator. The effect of TiO2 film thickness on the fabricated DSSCs performance parameters was studied. DSSC devices with average thickness 12μm achieved the highest conversion efficiency of 5.13 % with Jsc = 12.12 mA/cm2, and Voc = 0.69 V. The obtained results revealed that the amount of the adsorbed dye increases with the increase in the TiO2 film thickness and thus improve photogenerated current. However, exceeding the optimum photoanode thickness results in decline in the photogenerated current and the overall efficiency due to back electrons recombination and the lower photoanode transmittance.

    DOI: 10.1016/j.ijleo.2020.165595

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  • Ordered arrangement of F4TCNQ anions in three-dimensionally oriented P3HT thin films Reviewed

    Nagamatsu S., Pandey S.S.

    Scientific Reports   10 ( 1 )   2020.12

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    © 2020, The Author(s). An ordered arrangement of electron-accepting molecular dopant, 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4TCNQ), in three-dimensionally (3D) oriented poly(3-hexylthiophene) (P3HT) film was clarified. The 3D oriented P3HT thin films prepared by the friction-transfer technique were doped with F4TCNQ by dipping into an acetonitrile solution. The presence of F4TCNQ anions in the 3D oriented P3HT thin films was investigated by polarized ultraviolet/visible/near-infrared absorption spectroscopy, grazing incidence X-ray diffractometry, polarized Fourier transform infrared spectroscopy (FT-IR), and infrared p-polarized multiple-angle incidence resolution spectroscopy (pMAIRS). The F4TCNQ-doped 3D oriented P3HT films showed anisotropic properties in all characterizations. In particular, the anisotropic molecular vibrations from polarized FT-IR and pMAIRS have clearly revealed orientations of polymeric chains and molecular dopant molecules. Considering the results from several independent techniques indicated that F4TCNQ anions in the 3D oriented P3HT were orderly arranged in a 3D manner with respect to the 3D oriented P3HT such that their molecular long-axis parallel to the P3HT backbone, with in-plane molecular orientation. Additionally, the direction of the optical transition moment of the F4TCNQ anion was found to be parallel to the molecular short-axis.

    DOI: 10.1038/s41598-020-77022-0

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  • Effect of electrolyte for back contact transparent conducting oxide-less dye-sensitized solar cells: Iodine versus cobalt Reviewed

    Molla M.Z., Baranwal A.K., Hayase S., Pandey S.S.

    Journal of Photonics for Energy   10 ( 4 )   2020.10

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    © 2020 Society of Photo-Optical Instrumentation Engineers (SPIE). Grätzel solar cells are reported in a transparent conducting oxide-less (TCO-less) back-contact dye-sensitized solar cell (BC-DSC) architecture using a stainless steel mesh-protected working electrode along with nanoporous TiO2 semiconductor and metal-free D205 dye. Liquid electrolytes play a significant role for the dye regeneration in the working operation of TCO-less BC-DSCs; therefore, we report the effectiveness of two different commonly utilized electrolytes (iodine-and cobalt-based redox shuttles) for the construction and performance of TCO-less dye-sensitized solar cells (DSCs). Differential performance of DSCs thus fabricated was interpreted utilizing impedance spectral and lifetime analysis. It was found that although utilization of cobalt bipyridyl complex-based electrolyte was able to harvest higher photons in the lower wavelength region (330 to 430 nm) as compared to its iodine electrolyte counterparts, hampered dye regeneration due to reduced driving force and slower ion diffusion in combination with higher charge transport resistance at TiO2 / dye / electrolyte was responsible for relatively hampered photovoltaic performance at peak absorption.

    DOI: 10.1117/1.JPE.10.045501

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  • Boosting the Efficiency of Low-Cost T-C-O-Less Dye-Sensitized Solar Cells Employing Nanoparticle Spacers and Cobalt Complex Redox Shuttle Reviewed

    Molla M.Z., Baranwal A.K., Hayase S., Pandey S.S.

    ACS Applied Electronic Materials   2 ( 9 )   2721 - 2729   2020.09

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    © 2020 American Chemical Society. A strategy has been explored to enhance the diffusion of Co2+/3+ species through the dye-stained nanoparticle spacer employed as an electrolyte absorbing layer with different nanoparticle sizes of TiO2 (30 and 20 nm) and ZrO2 (15 nm) films in transparent conducting oxide-less back-contact dye-sensitized solar cells (T-C-O-less B-C-DSCs). A dye-stained nanoparticle spacer with a relatively larger particle of the TiO2 (30 nm) film brought about easy diffusion of cobalt(II/III) complexes leading to an enhanced photoconversion efficiency (PCE) of 6.55% as compared to relatively smaller nanoparticle of the TiO2 (20 nm) film (4.95%) and ZrO2 (15 nm) film (2.03%). The T-C-O-less B-C-DSC exhibits a lower PCE of 6.55% relative to the T-C-O-based DSC (9.10%) owing to relatively hampered diffusivity of [Co(bpy)3]3+/2+ complexes through perforated holes of the SS-mesh as well as the nanoparticle spacer. A differential study reveals that the cobalt electrolyte exhibits much improved light accumulation in the range 330-430 nm relative to the iodine electrolyte counterpart. The corrosion study of the SS-mesh and Ti-protected SS-mesh reveals that stable T-C-O-less B-C-DSCs can be attained only by the cobalt electrolyte because of its mild nature toward the SS-mesh and Ti metal as compared to the iodine electrolyte.

    DOI: 10.1021/acsaelm.0c00437

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  • Parametric optimization of back-contact T-C-O-free dye-sensitized solar cells employing indoline and porphyrin sensitizer based on cobalt redox electrolyte Reviewed

    Molla M.Z., Baranwal A.K., Kapil G., Hayase S., Pandey S.S.

    Solar Energy   208   411 - 418   2020.09

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    © 2020 International Solar Energy Society Transparent-conductive-oxide-free (T-C-O-free) back-contact (B-C) dye-sensitized solar cell (DSC) utilizing flexible Stainless Steel (SS) mesh (SS-mesh) supported with mesoporous TiO2 as a photoanode employing cobalt electrolyte is being presented. A thin layer of Ti metal over the SS-mesh was ascertained to be essential to retard the back electron reaction, which was confirmed by the dark current measurements. The interfacial contact between the SS-mesh and nanoporous (NP) TiO2 of the photoanode of T-C-O-free B-C-DSC was driven to influence the photovoltaic performance greatly. It was confirmed by electrochemical impedance analysis that NP TiO2 of 30 nm exhibited less charge transfer impedance observed at TiO2-dye-electrolyte interface as compared to TiO2 of having particle size of 15–20 nm. T-C-O-free B-C-DSC employing dye mixer combination of indoline dyes D-131 and D-205 (1:1) with relatively larger NP of TiO2 (30 nm) as compared to TiO2 of 15–20 nm exhibited enhanced photoconversion efficiency (PCE) of 4.02%. To increase the PCE even further, T-C-O-free B-C-DSC with cobalt based electrolyte sensitized with porphyrin (YD2-o-C8)-dye bearing a larger optical window was investigated. An optimized 10 µm thickness of the TiO2 layer was found to be optimum leading to an enhanced PCE of 5.26%.

    DOI: 10.1016/j.solener.2020.08.011

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  • Stability Improvement of Perovskite Solar Cells by Adding Sb-Xanthate to Precursor Solution Reviewed

    Nam K.S., Krishnamurthy S., Qing S., Toyoda T., Yoshino K., Minemoto T., Ma T., Pandey S., Hayase S.

    Physica Status Solidi (A) Applications and Materials Science   217 ( 18 )   2020.09

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    © 2020 Wiley-VCH GmbH Herein, it is reported that the stability of a halogenated perovskite (PVK) solar cell consisting of an fluorine-doped tin oxide (FTO) substrate/TiO2/CH3NH3PbI3/N2,N2,N2′,N2′,N7,N7,N7′,N7′-octakis(4-methoxyphenyl)-9,9′-spirobi[9H-fluorene]-2,2′,7,7′-tetramine/Ag/Au structure is improved by adding Sb-xanthate to the PVK layer without large loss of efficiency. The Sb-element-rich layer is observed on top of the PVK layer. From the X-ray photoelectron spectroscopy (XPS) study, it is concluded that an inorganic SbxOy passivation layer on the PVK layer is prepared by baking the solution of the Sb-xanthate and the PVK precursor. The inorganic layer prevents moisture and oxygen from penetrating into the PVK layer. This article provides a new method to obtain a passivation layer on a PVK layer by baking a mixture solution in one step for improving solar cell stability.

    DOI: 10.1002/pssa.202000144

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  • Reduced contact resistance in organic field-effect transistors fabricated using floating film transfer method Reviewed

    Bhargava K., Yadav N., Kumari N., Pandey S.S., Singh V.

    Journal of Materials Science: Materials in Electronics   31 ( 18 )   15277 - 15285   2020.09

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    © 2020, Springer Science+Business Media, LLC, part of Springer Nature. This paper presents an in-depth performance-based comparison of organic field-effect transistors (OFETs) prepared using the conventional spin coating (SC) technique and a recently developed floating film transfer method (FTM). A remarkable improvement in the performance of transistors fabricated using FTM was achieved in comparison to their SC counterparts. The estimated value of width-normalized contact resistance in FTM-based OFETs was an order lower in comparison to that of transistors prepared using SC technique. The observed results were credited to a significant enhancement in the length of π-conjugation due to the presence of edge-on oriented polymer chains of active layer deposited using FTM, leading to the lowering of carrier injection barrier at the Au/P3HT interface. These results were well supported through absorption, photoluminescence and Raman measurements as well as the anisotropy measurements using polarized absorption spectra, which also pointed towards the improvement in the polymer chain alignment of thin films prepared by FTM over that prepared by the conventional SC technique. The results indicate thin film morphology as a key towards reducing the contact resistance in OFETs.

    DOI: 10.1007/s10854-020-04092-1

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  • Orientation of Semiconducting Polymers via Swift Printing and Drawing Techniques for High Performance Organic Electronic Devices Reviewed

    Kumari N., Sharma S., Nagamatsu S., Pandey S.S.

    Proceedings of AM-FPD 2020 - 27th International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials   67 - 70   2020.09

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    © 2020 FTFMD. Recent developments in the field of organic electronics are being triggered by various approaches aiming towards enhancing the charge transport in thin-films of processable organic semiconductors such as novel molecular design, synthesis and increasing their crystallinity and molecular orientation adopting various thin film fabrication techniques. However, intriguing challenges associated with serious health and environment hazards due to inevitable use of halogenated solvents are needed to be addressed amicably before the practical realization of organic electronic devices. In order to address this issue, thin film fabrication techniques like floating-film transfer and friction transfer have been utilized to demonstrate environment friendly and sustainable fabrication of large area thin-films possessing adequate uniformity without comprising the facile charge transport. Organic field effect transistors were fabricated using different regions of the large-area thin films (≥ 10 cm2) and by optimizing casting conditions, uniformity in the field effect mobility (μ) was demonstrated. Besides this, as compared to most commonly used spin coating, one order of magnitude enhancement in the μ was successfully achieved utilizing oriented thin films fabricated by our methods.

    DOI: 10.23919/AM-FPD49417.2020.9224472

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  • Comparative analysis of metal diffusion effects in polymer films coated with spin coating and floating film transfer techniques Reviewed

    Yadav N., Bhargava K., Kumari N., Pandey S.S., Singh V.

    Synthetic Metals   264   2020.06

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    © 2020 Elsevier B.V. In this work a comparative analysis between the extent of gold diffusion of the top coated gold layer into the conducting polymer matrix of spin coated polymer films and polymer films coated via floating film transfer method (FTM) has been investigated. For the sake of comparison two different device configurations i.e. ITO/rr-P3HT (spin coated)/Au and ITO/rr-P3HT (spin coated)/rr-P3HT (FTM coated)/Au have been compared. The J-V characteristics of these devices revealed a non-Ohmic injection occurring near the top gold electrode/polymer interface. Furthermore, the current flowing through the device consisting of FTM layer/Au interface was observed to be lower as compared to the one consisting of spin coated layer/Au interface, indicating higher gold diffusion in well-ordered FTM thin films. These observations have been validated by optical and structural characterization methods viz. absorption, photoluminescence, Raman spectroscopy and X-Ray Diffraction (XRD) measurement. Finally Fowler-Nordheim (FN) tunneling currents were studied under high electric field applications for the two devices which confirmed presence of higher barrier at the interface of gold and FTM coated polymer film.

    DOI: 10.1016/j.synthmet.2020.116378

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  • Synthesis, Photophysical characterization and dye adsorption behavior in unsymmetrical squaraine dyes with varying anchoring groups Reviewed

    Ajendra Kumar Vats, Anusha Pradhan, Shuzi, Hayase, Shyam S. Pandey

    Journal of Photochemistry and Photobiology A: Chemistry ( Elsevier )   394   112467(1) - 112467(12)   2020.03

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    DOI: 10.1016/j.jphotochem.2020.112467

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  • Molecular Orientation and Anisotropic Charge Transport in the Large Area Thin Films of Regioregular Poly (3-alkylthiopnes) Fabricated by Ribbon-Shaped FTM Reviewed

    Atul SM Tripathi, Rakesh Kumar Gupta, Shubham Sharma, Shuichi Nagamatsu, Shyam S Pandey

    Organic Electronics ( Elsevier )   81   105683(1) - 105683(9)   2020.03

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    DOI: 10.1016/j.orgel.2020.105687

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  • Investigation and control of charge transport anisotropy in highly oriented friction transferred polythiophene thin films Reviewed

    Nikita Kumari, Manish Pandey, Shuichi Nagamatsu, Masakazu Nakamura, Shyam Sudhir Pandey

    ACS Applied Materials & Interfaces ( American Chemical Society )   12 ( 10 )   11876 - 11883   2020.02

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    Highly oriented thin films of poly[2,5-bis(3-tetradecylthiophen-2-yl)thieno[3,2-b]thiophene] (PBTTT) were prepared by friction-transfer technique followed by their characterization using polarized absorption spectroscopy, angle-dependent polarized Raman spectroscopy, and X-ray diffraction (XRD) techniques. Orientation in high-molecular-weight (MW) polymers is hampered by chain folding or entanglements, which limit their macromolecular orientation. Interestingly, utilizing high-molecular-weight PBTTT (MW > 50 kDa) and friction-transfer technique, successful fabrication of highly oriented thin films with very high dichroic ratio (∼30) was demonstrated. The role of the substrate's surface energy and its impact on the field-effect mobility (μ) of the oriented thin films were comprehensively investigated. The influence of annealing the thin films as prepared on the bare and self-assembled monolayer (SAM)-treated SiO2 surfaces exhibiting differential trends of μ was systematically investigated. This was explained by partial and complete conformational transformation of macromolecules on bare and SAM-treated SiO2 surfaces, respectively, after annealing them beyond liquid crystalline phase transition temperature, as revealed by in-plane and out-of-plane XRD results. On bare SiO2, optimum μ up to 0.03 cm2 V–1 s–1 along the backbone orientation was obtained for the thin films annealed to 120 °C; whereas, it reached up to 0.36 cm2 V–1 s–1 on SAM-treated SiO2 after annealing at 200 °C. Finally, a charge transport mechanism was proposed taking evidence from the anisotropic optical and electrical characteristics of the friction-transferred PBTTT films into consideration.

    DOI: 10.1021/acsami.9b23345

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  • 2D positional mapping of casting condition driven microstructural distribution in organic thin films Reviewed

    Kumari N., Pandey M., Nagamatsu S., Pandey S.S.

    Japanese Journal of Applied Physics   59 ( SC )   2020.02

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    © 2019 The Japan Society of Applied Physics. Fabrication of large-area thin films and their swift characterization is highly desired for the commercial aspects of the organic electronic devices. Although a number of techniques have been proposed for the large-area thin film fabrication, the microstructural variation is still an issue. In this work, the facile characterization of distribution in thickness and macromolecular ordering in the drop-casted and spin-coated poly(3-hexylthiophene) thin films have been performed through newly developed 2D positional mapping technique. Through this technique, a comparative analysis of the absorption spectra in terms of peak absorbance and excitonic bandwidth (W) was performed for the whole sample, the lower value of W observed for the drop-casted thin film depicts its molecular ordering. Moreover, the difference in W (≈ 10 meV) was noticed between two points (≈1 mm apart) on the drop-casted film, which corresponds to the difference in microstructural ordering and it is complicated to characterize through the conventional spectroscopic techniques.

    DOI: 10.7567/1347-4065/ab48b9

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  • 2D positional mapping of casting condition driven microstructural distribution in organic thin films Reviewed

    Nikita Kumari, Manish Pandey, Shuichi Nagamatsu, Shyam S Pandey

    Japanese Journal of Applied Physics ( IOP Science )   69 ( SC )   SCCA06-1 - SCCA06-6   2019.11

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    Fabrication of large-area thin films and their swift characterization is highly desired for the commercial aspects of the organic electronic devices. Although a number of techniques have been proposed for the large-area thin film fabrication, the microstructural variation is still an issue. In this work, the facile characterization of distribution in thickness and macromolecular ordering in the drop-casted and spin-coated poly(3-hexylthiophene) thin films have been performed through newly developed 2D positional mapping technique. Through this technique, a comparative analysis of the absorption spectra in terms of peak absorbance and excitonic bandwidth (W) was performed for the whole sample, the lower value of W observed for the drop-casted thin film depicts its molecular ordering. Moreover, the difference in W (≈ 10 meV) was noticed between two points (≈1 mm apart) on the drop-casted film, which corresponds to the difference in microstructural ordering and it is complicated to characterize through the conventional spectroscopic techniques.

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  • P3HT Nanofibrils Thin-Film Transistors by Adsorbing Deposition in Suspension Reviewed

    Shuichi Nagamatsu, Masataka Ishida, Shougo Miyajima, Shyam S Pandey

    Materials ( MDPI )   12 ( 21 )   3643   2019.11

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    A novel film preparation method utilizing polymer suspension, entitled adsorbing deposition in suspensions (ADS), has been proposed. The poly(3-hexylthiophene) (P3HT) toluene solution forms P3HT nanofibrils dispersed suspension by aging. P3HT nanofibrils are highly crystallized with sharp vibronic absorption spectra. By the ADS method, only P3HT nanofibrils in suspension can be deposited on the substrate surface without any disordered fraction from the dissolved P3HT in suspension. Formed ADS film contains only the nanostructured conjugated polymer. Fabricated polymer thin-film transistor (TFT) utilizing ADS P3HT film shows good TFT performances with low off current, narrow subthreshold swing and large on/off current ratio

    DOI: 10.3390/ma12213643

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  • Clitoria ternatea flower as natural dyes for Dye-sensitized solar cells Reviewed

    Azwar Hayat, A Erwin E Putra, Novriany Amaliyah, Shyam S Pandey

    IOP Conference Series: Materials Science and Engineering ( IOP Science )   619 ( 1 )   012049-1 - 012049-6   2019.10

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    Clitoria ternatea flowers have been investigated as a natural sensitizer in Dye-sensitized solar cell (DSSC). Dried C. ternatea flowers ware immersed in ethanol for 48 hours in dark room to obtain anthocyanin pigments. We compared the photovoltaic performance of the sensitizers with Titanium dioxide (TiO2) only and TiO2 with scattering layers. C. ternatea dyes have higher Power Conversion Efficiency (PCE) when applied in TiO2 with scattering layers compared to standard TiO2 semiconductors. Scattering layer (SL) has increased the light path inside the photo-anode film that doubled the short-circuit current (Jsc) and enhanced the open circuit voltage (Voc) compared to TiO2 based cell without the SL. In conclusion, from the result, higher electron injections can be achieved by light management on photo-anode film with scattering layers as one of strategy to enhance the efficiency for further low cost and environment-friendly solar cell.

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  • Role of device architecture and AlOX interlayer in organic Schottky diodes and their interpretation by analytical modeling Reviewed

    Nikita Kumari, Manish Pandey, Kengo Hamada, Daisuke Hirotani, Shuichi Nagamatsu, Shuzi Hayase, Shyam S Pandey

    Journal of Applied Physics ( American Institute of Physics )   126   125501-1 - 125501-12   2019.09

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    Considering the pivotal role of interfaces in controlling the performance of organic electronic devices, implications of metal/organic interfacial quality in a Schottky barrier diode (SBD) are investigated. The nature of metal/organic interfaces and the thin film quality of regioregular poly (3-hexylthiophene) based SBDs fabricated in different device architectures are investigated using experimental and theoretical modeling. The importance of oxidized aluminum nanostructures as an interlayer at the Schottky interface for the dramatic enhancement of the rectification ratio (>106 at ±5 V) has been demonstrated, which is attributed to suppressed leakage current due to the oxide layer and the formation of a charge double layer. Furthermore, electrical performances of all the SBDs were modeled in terms of an underlying particular phenomenon solely or with the combination of multiple physical phenomena. The combined modeling equation used in this work fits well for the different device architectures, which validates its generality in order to extract the device parameters

    DOI: 10.1063/1.5109083

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  • Recent advances in the orientation of conjugated polymers for organic field-effect transistors Reviewed

    Manish Pandey, Nikita Kumari, Shuichi Nagamatsu, Shyam S Pandey

    Journal of Materials Chemistry ( Royal Society of Chemistry )   7   13323 - 13351   2019.09

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    Solution processable conjugated polymers (CPs) possess unique molecular structures in terms of extended π-conjugation in combination with quasi 1-dimensionality, imparting them with an inherent tendency for molecular self-assembly and ultimately determining their optoelectronic properties. Short-range molecular ordering and long-range macroscopic orientation are two different but interdependent phenomena, which should be optimized depending on the nature of electronic devices (planar versus vertical). Judicious control of the macromolecular orientations and conformation-assisted morphologies of CPs are key for determining and controlling the anisotropic charge transport in organic field effect transistors (OFETs). The present review focuses on different solution-based approaches for thin film fabrication developed in the last two decades aimed towards controlling the film morphologies and macroscopic

    DOI: 10.1039/C9TC04397G

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  • Implication of Molecular Weight on Optical and Charge Transport Anisotropy in PQT-C12 Films Fabricated by Dynamic FTM Reviewed

    Atul SM Tripathi, Shifumi Sadakata, Rakesh Kumar Gupta, Shuichi Nagamatsu, Yoshito Ando, Shyam S Pandey

    ACS Applied Materials and Interfaces ( The American Chemical Society )   11 ( 31 )   28088 - 28095   2019.07

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    Large area (>20 cm × 2 cm)-oriented thin films of PQT-C12 with varying molecular weight and polydispersity index (PDI) were fabricated by the ribbon-shaped floating film transfer method aiming toward their application as an active semiconductor element of organic field effect transistors (OFETs). Investigation on the influence of the molecular weight and PDI upon the extent of molecular alignment and anisotropic charge transport was systematically carried out. It has been demonstrated that high molecular weight in combination with low PDI not only leads to a very high optical anisotropy >10 but also high charge carrier anisotropy with a hole mobility of about 0.07 cm2/V·s for OFETs using parallel-oriented PQT-C12 thin films. Such a structure–property correlation is highly beneficial for the development of high performance organic electronic devices by synergistic and amicable tuning of the optoelectronic anisotropies and polymer synthetic variables.

    Kyutacar

    Other Link: https://doi.org/10.1021/acsami.9b06568

  • Wide wavelength photon harvesting in dye-sensitized solar cells utilizing cobalt complex redox electrolyte: Implication of surface passivation Reviewed

    Anusha Pradhan, Maryala Saikiran, Gaurav Kapil ,Shuzi Hayase, Shyam S. Pandey

    Solar Energy Materials and Solar Cells ( Elsevier )   195   122 - 133   2019.03

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    A combination of near infra-red (NIR) photon harvesting and cobalt electrolytes having deeper redox energy level are needed for the fabrication of high efficiency dye-sensitized solar cells (DSSCs). A logical molecular design of unsymmetrical squaraine dye (SQ-110) as a representative of NIR dyes has been demonstrated to function well in DSSC using cobalt complex redox electrolyte. Problem of mass transport limitations due to the bulky cobalt complex ions leading to relatively enhanced charge recombination was amicably solved by single as well as multiple compact metal oxide surface passivation on both of the transparent conducting oxide substrate as well as mesoporous TiO2. Complete absence of light absorption beyond 550 nm wavelength region by D-35 and utilization of a complementary light harvesting dye SQ-110 led to efficient wide wavelength photon harvesting. DSSC fabricated using a dye cocktail of D-35 and SQ-110 in 4:1 ratio resulted in to photoconversion efficiency (PCE) of 7.2%, which is much higher as compared to the constituent individual sensitizers D-35 (3.6%) and SQ-110 (1.9%). This synergistic enhancement in PCE by dye cocktail was associated with the mutual co-operation of respective dyes in terms controlling the dye aggregation and complementary photon harvesting. In this dye cocktail system, D-35 is involved in the prevention of dye aggregation, lower wavelength photon harvesting and energy transfer induced photocurrent enhancement.

    DOI: 10.1016/j.solmat.2019.03.013

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  • Optoelectrical anisotropy in graphene oxide supported polythiophene thin films fabricated by floating film transfer Reviewed

    Rajiv K Pandey, Atul SM Tripathi, Shyam S Pandey, Rajiv Prakash

    Carbon ( Elsevier )   147   252 - 261   2019.03

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    A facile method for the fabrication of highly oriented hybrid thin films of conjugated polymer (CP) with graphene oxide (GO) as 2D nano-filler over the high surface tension liquid substrate by floating film transfer is being reported. Formation of the self-assembled oriented hybrid thin film has been validated using multiple characterization techniques. Hybrid thin films thus prepared have been used for the fabrication of organic field effect transistors (OFETs) followed by investigation of anisotropic charge carrier transport. OFETs made with hybrid films oriented in channel direction exhibited the superior device performance with >6 fold augmentation in field effect mobility (μ) and one order improvement in on/off ratio as compared to that of devices based on pristine CP. However, pristine polymer shows 2.2 fold enhancement in mobility and one order augmentation in on/off ratio in parallel orientation as compared to the corresponding perpendicularly oriented films. Thus, our study has elucidated a path to obtain oriented, aligned, and self - assembled hybrid films for further improvement in the device performance aiming towards the applications in organic electronics.

    DOI: 10.1016/j.carbon.2019.02.086

    Kyutacar

    Other Link: https://www.sciencedirect.com/science/article/pii/S0008622319302179

  • Passivation of Grain Boundary by Squaraine Zwitterions for Defect Passivation and Efficient Perovskite Solar Cells Reviewed

    Zhen Wang, Anusha Pradhan, Muhammad Akmal kamarudin, Manish Pandey, Shyam S Pandey, Putao Zhang, Chi huey Ng, Atul SM Tripathi, Tingli Ma, Shuzi Hayase

    ACS Applied Materials and Interfaces ( The American Chemical Society )   11 ( 10 )   10012 - 10020   2019.02

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    Unavoidable defects in grain boundaries (GBs) are detrimental and critically influence the organometal halide perovskite performance and stability. To address this issue, semiconducting molecules have been employed to passivate traps along perovskite GBs. Here, we designed and synthesized three squaraine molecules (SQ) with zwitterionic structure to interact with under-coordinated Pb2+ and passivate Pb–I antisite defects. Density functional theory calculation shows symmetric O atoms could coordinate with perovskite grains simultaneously, resulting in continuous charge distribution at the SQ–perovskite interface. The energetic traps distribution in CH3NH3PbI3 perovskite is influenced significantly by the interaction between SQ and perovskite as analyzed by thermally stimulated current, in which the deep-level defects are considerably reduced due to efficient SQ passivation. In addition, we explore how SQ …

    DOI: 10.1021/acsami.8b22044

    Other Link: https://pubs.acs.org/doi/abs/10.1021/acsami.8b22044

  • 2D positional profiling of orientation and thickness uniformity in the semiconducting polymers thin films Reviewed

    Nikita Kumari, Atul SM Tripathi, Shifumi Sadakata, Manish Pandey, Shuichi Nagamatsu, Shuzi Hayase, Shyam S Pandey

    Organic Electronics ( Elsevier )   68   221 - 229   2019.02

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    Harnessing the full potential of solution processable conjugated polymers (CPs) as active semiconductor elements lies in the facile thin film fabrication along with amicable control of molecular self-assembly and orientation. Probing the nature and uniformity of thin films are inevitable for fabrication of devices with high reproducibility. Herein, a new method for the fast and facile profiling of thickness and molecular orientation of large area thin films is being reported. Thin films of PBTTT-C14 fabricated by three different methods like floating film transfer method (FTM), friction transfer and spin coating were subjected to profiling of thickness and molecular orientation using 2D positional mapping system followed by fabrication of organic thin film transistors. In order to prove applicability of the mapping system on other CPs, oriented films of PQT-C12 were also prepared by FTM and optical anisotropy estimated by the mapping system (23.0) and conventional spectrophotometer (22.4) validates the performance of our positional mapping system. Spin-coated thin films of PBTTT-C14 subjected to positional profiling of the film uniformity revealed that films are non-uniform and there was a gradual increase in the thickness from center to the periphery.

    DOI: 10.1016/j.orgel.2019.02.011

    Kyutacar

    Other Link: https://www.sciencedirect.com/science/article/pii/S1566119919300746

  • Back-illuminated dye-sensitized solar cell flexible photoanode on titanium foil Reviewed

    Shaban S., Shafie S., Pandey S.S., Lokman M.Q., Ahmad F., Hamidon M.N., Sharif N.F.M.

    ASM Science Journal   12 ( SpecialIssue4 )   29 - 35   2019.01

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    © 2019, Akademi Sains Malaysia. This paper reports the preparation and performance analysis on dye-sensitized solar cells (DSSC) using titanium (Ti) foil as flexible photoanode for back-illuminated measurement. Performance differences were also carried with the fluorine-doped tin oxide (FTO) glass photoanode using the back and front-illuminated technique. The hydrogen peroxide (H2O2) treated Ti foil surface was applied and the doctor blade method was used for deposition on photoanode during the process of fabrication. Surface morphology of the treated Ti Foil with H2O2 shows the formation of TiO2 nanostructure which results in significant attachment of TiO2 layer on Ti Foil. The results on measurement show that the fabricated flexible photoanode DSSC has an efficiency of power conversion at 1.00% under 1.5 A. M solar radiation by using back-illuminated while DSSC with solid-state glass photoanode has an efficiency power conversion at 0.53% (back-illuminated) and 2.22% (front-illuminated). However, the flexible photoanode DSSC has better power conversion efficiency than the solid-state glass photoanode DSSC under the condition of back-illumination. It is lower in result comparatively with front illumination DSSC due to the coated of platinum at the counter electrode that reflects light partially, while electrolyte iodine absorbs some photons and effects on DSSC performance.

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  • Synthesis, characterizations and photo-physical properties of novel lanthanum (III) complexes Reviewed

    Iffat Ameen, Abhishek Kumar Tripathi, Afshan Siddiqui, Gaurav Kapil, Shyam S Pandey, Umesh Nath Tripathi

    Journal of Taibah University for Science   12 ( 6 )   796 - 808   2018.11

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    DOI: 10.1080/16583655.2018.1516028

    Other Link: https://www.tandfonline.com/doi/abs/10.1080/16583655.2018.1516028

  • Facile fabrication of large area oriented conjugated polymer films by ribbon-shaped FTM and its implication on anisotropic charge transport Reviewed

    Atul S.M.Tripathi, Nikita Kumari, Shuichi Nagamatsu, Shuzi Hayase, Shyam S.Pandey

    Organic Electronics ( Elsevier )   65   1 - 7   2018.10

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    Facile fabrication of large area [20 cm (L) × 2 cm (W)] uniform and oriented thin films of a variety of conjugated polymers (CPs) with minimal material wastage has been successfully demonstrated using our newly developed ribbon-shaped floating film transfer method (FTM). Under identical film fabrication conditions of FTM like hydrophilic liquid substrate consisted of ethylene glycol and glycerol (3:1), the temperature of 60 °C and polymer concentration 1% (w/w) in chloroform, order of molecular orientation was found to be PQT-C12 > F8T2 > NR-P3HT > PBTTT-C14 > PTB7. Depending on the nature of polymeric backbone, CPs exhibited different optical anisotropies in their oriented thin films, which was explained in terms of nature and rigidity of polymeric chains in the light of persistent length. Organic field effect transistors fabricated using these CPs exhibited clear p-type behaviour and anisotropic charge transport. Amongst various CPs used, PQT-C12 not only exhibited the highest optical anisotropy (DR = 5.1) but also highest anisotropic charge transport (μ||/μ⊥ = 7.1). Ribbon-shaped thin films of PQT-C12 prepared by slider based FTM exhibited best device performance with charge carrier mobility of 5.0 × 10−2 cm2/V and ON/OFF ratio of 106, when films were oriented parallel to the channel direction. Interestingly, a mobility of parallel oriented thin films prepared by FTM was about two orders of magnitude higher compared to the OFETs fabricated using conventional spin coating (6.7× 10−4 cm2/V).

    DOI: 10.1016/j.orgel.2018.10.043

    Kyutacar

    Other Link: https://www.sciencedirect.com/science/article/pii/S1566119918305585

  • Synthesis and Optoelectrical Characterization of Novel Squaraine Dyes Derived from Benzothiophene and Benzofuran Reviewed

    G. Hanumantha Rao, Manish Pandey, Kamatham Narayanaswamy, Ravulakollu Srinivasa Rao, Shyam S. Pandey, Shuzi Hayase, and Surya Prakash Singh

    ACS Omega   3 ( 10 )   13919 - 13927   2018.10

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    DOI: 10.1021/acsomega.8b01240

    Kyutacar

  • Enhancement of charge transport in quantum dots solar cells by N-butylamine-assisted sulfur-crosslinking of PbS quantum dots Reviewed

    Zhen Wang, Zhaosheng Hu, Muhammad Akmal Kamarudin, Gaurav Kapil, Atul Tripathi, Qing Shen, Kenji Yoshino, Takashi Minemoto, Sham S. Pandey, Shuzi Hayase

    Solar Energy   174   399 - 408   2018.09

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    DOI: 10.1016/j.solener.2018.09.026

    Other Link: https://www.sciencedirect.com/science/article/pii/S0038092X18308983

  • Synthesis and Photophysical Characterization of Unsymmetrical Squaraine Dyes for Dye-Sensitized Solar Cells utilizing Cobalt Electrolytes Reviewed

    Anusha Pradhan, Maryala Saikiran, Gaurav Kapil, Shuzi Hayase, and Shyam Sudhir Pandey

    ACS Applied Energy Materials   1 ( 9 )   4545 - 4553   2018.08

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    DOI: 10.1021/acsaem.8b00653

    Kyutacar

  • A review of transparent solar photovoltaic technologies Reviewed

    Alaa AF Husain, Wan Zuha W Hasan, Suhaidi Shafie, Mohd N Hamidon, Shyam Sudhir Pandey

    Renewable and Sustainable Energy Reviews   94   779 - 791   2018.07

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    DOI: 10.1016/j.rser.2018.06.031

    Kyutacar

  • Study Pertaining to Observe the Effect of PbI2 Passivation on Carbon Electrode for Perovskite Solar Cells by Quartz Crystal Microbalance System Reviewed

    Putao Zhang, Gaurav Kapil, Kengo Hamada, Shyam Sudhir Pandey, Tingli Ma, Shuzi Hayase

    ACS Sustainable Chemistry & Engineering   6 ( 8 )   10221 - 10228   2018.06

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    DOI: 10.1021/acssuschemeng.8b01550

  • Anisotropic charge transport in highly oriented films of semiconducting polymer prepared by ribbon-shaped floating film Reviewed

    Atul SM Tripathi, Manish Pandey, Shifumi Sadakata, Shuichi Nagamatsu, Wataru Takashima, Shuzi Hayase, Shyam S Pandey

    112 ( 12 )   123301-1 - 123301-5   2018.03

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    Language:English   Publishing type:Research paper (scientific journal)

    DOI: 10.1063/1.5000566

    Kyutacar

    Other Link: https://aip.scitation.org/

  • Implications of doping and depletion on the switching characteristics in polymer-based organic field-effect transistors Reviewed

    Shashi Tiwari, Manish Pandey, Wataru Takashima, Shuichi Nagamatsu, SK Balasubramanian, Shuzi Hayase, Shyam S Pandey, Rajiv Prakash

    Organic Electronics   56   152 - 158   2018.02

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    DOI: 10.1016/j.orgel.2018.02.012

    Kyutacar

  • Rapid Formation and Macroscopic Self-Assembly of Liquid-Crystalline, High-Mobility, Semiconducting Thienothiophene Reviewed

    Manish Pandey, Ashwathanarayana Gowda, Shuichi Nagamatsu, Sandeep Kumar, Wataru Takashima, Shuzi Hayase, Shyam S. Pandey

    Advanced Materials Interfaces   5 ( 6 )   1700875(1) - 1700875(11)   2018.01

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    DOI: 10.1002/admi.201700875

    Kyutacar

    Other Link: http://onlinelibrary.wiley.com/doi/10.1002/admi.201700875/abstract

  • Casting Control of Floating-films into Ribbon-shape Structure by modified Dynamic FTM Reviewed

    Tripathi, M Pandey, S Nagamatsu, SS Pandey, S Hayase, W Takashima

    Journal of Physics: Conference Series   924 ( 1 )   012014(1) - 012014(6)   2017.11

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    Language:English   Publishing type:Research paper (scientific journal)

    DOI: 10.1088/1742-6596/924/1/012014

    Kyutacar

    Other Link: http://iopscience.iop.org/article/10.1088/1742-6596/924/1/012014/meta

  • Photophysical Characterization and BSA Interaction of Direct Ring Carboxy Functionalized Symmetrical squaraine Dyes Reviewed

    Maryala Saikiran, Shyam S Pandey, Shuzi Hayase, Tamaki Kato

    Journal of Physics: Conference Series   924 ( 1 )   012006(1) - 012006(10)   2017.11

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    Language:English   Publishing type:Research paper (scientific journal)

    DOI: 10.1088/1742-6596/924/1/012006

    Kyutacar

    Other Link: http://iopscience.iop.org/article/10.1088/1742-6596/924/1/012006/meta

  • Parametric Optimization of Dye-Sensitized Solar Cells Using Far red Sensitizing Dye with Cobalt Electrolyte Reviewed

    A Pradhan, M Saikiran, G Kapil, S S Pandey, S Hayase

    Journal of Physics: Conference Series   924   012001(1) - 012001(9)   2017.11

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    Language:English   Publishing type:Research paper (scientific journal)

    DOI: 10.1088/1742-6596/924/1/012001

    Kyutacar

    Other Link: http://iopscience.iop.org/article/10.1088/1742-6596/924/1/012001/meta

  • Investigation of the minimum driving force for dye regeneration utilizing model squaraine dyes for dye-sensitized solar cells Reviewed

    Anusha Pradhan, Takuya Morimoto, Maryala Saikiran, Gaurav Kapil, Shuzi Hayase, Shyam S Pandey

    Journal of Materials Chemistry A   5 ( 43 )   22672 - 22682   2017.10

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)

    DOI: 10.1039/C7TA06990A

    Kyutacar

  • Efficient near infrared fluorescence detection of elastase enzyme using peptide-bound unsymmetrical squaraine dye Reviewed

    Maryala Saikiran, Daisuke Sato, Shyam S Pandey, Shuzi Hayase, Tamaki Kato

    Bioorganic & Medicinal Chemistry Letters   27 ( 17 )   4024 - 4029   2017.07

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    DOI: 10.1016/j.bmcl.2017.07.057

    Kyutacar

    Other Link: https://www.sciencedirect.com/science/article/pii/S0960894X17307643

  • Air-stable vapor phase sensing of ammonia in sub-threshold regime of poly(2,5-bis(3-tetradecylthiophen-2yl)thieno(3,2-b)thiophene) based polymer thin-film transistor Reviewed

    246   243 - 251   2017.07

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    Language:English   Publishing type:Research paper (scientific journal)

    DOI: 10.1016/j.snb.2017.02.063

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  • Investigation of Interfacial Charge transfer in Solution Processed Cs2SnI6 Thin Films Reviewed

    Gaurav Kapil, Takeshi Ohta, Tsuguo Koyanagi, Yaohong Zhang, Murugan Vigneshwaran, Yuhei Ogomi, Shyam Sudhir Pandey, Kenji Yoshino, Qing Shen, Taro Toyoda, Md Mijanur Rahman, Takashi Minemoto, Takurou N Murakami, Hiroshi Segawa, Shuzi Hayase

    Journal of Physical Chemistry C   121 ( 24 )   13092 - 13100   2017.06

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    Language:English   Publishing type:Research paper (scientific journal)

    DOI: 10.1021/acs.jpcc.7b04019

  • Interplay of Orientation and Blending: Synergistic Enhancement of Field Effect Mobility in Thiophene-Based Conjugated Polymers Reviewed

    Manish Pandey, Shuichi Nagamatsu, Wataru Takashima, Shyam Sudhir Pandey, Shuzi Hayase

    Journal of Physical Chemistry C   121 ( 21 )   11184 - 11193   2017.05

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    Language:English   Publishing type:Research paper (scientific journal)

    DOI: 10.1021/acs.jpcc.7b03416

  • Layer-by-layer coating of oriented conjugated polymer films towards anisotropic electronics Reviewed

    227   29 - 36   2017.05

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    Language:English   Publishing type:Research paper (scientific journal)

    DOI: 10.1016/j.synthmet.2017.02.018

    Kyutacar

    Scopus

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  • Solvent driven performance in thin floating-films of PBTTT for organic field effect transistor: Role of macroscopic orientation Reviewed

    43   240 - 246   2017.04

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    DOI: 10.1016/j.orgel.2017.01.031

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  • Controlling factors for orientation of conjugated polymer films in dynamic floating-film transfer method Reviewed

    17 ( 3 )   1915 - 1922   2017.03

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    DOI: 10.1166/jnn.2017.12816

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  • Transparent Conductive Oxide Layer and Hole Selective Layer Free Back-Contacted Hybrid Perovskite Solar Cell Reviewed

    Zhaosheng Hu, Gaurav Kapil, Hiromitsu Shimazaki, Shyam Sudhir Pandey, Tingli Ma, Shuzi Hayase

    The Journal of Physical Chemistry C   121 ( 8 )   4214 - 4219   2017.02

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    Language:English   Publishing type:Research paper (scientific journal)

    DOI: 10.1021/acs.jpcc.7b00760

    Other Link: http://pubs.acs.org/doi/abs/10.1021/acs.jpcc.7b00760

  • Combined theoretical and experimental approaches for development of squaraine dyes with small energy barrier for electron injection Reviewed

    Shyam S Pandey, Takuya Morimoto, Naotaka Fujikawa, Shuzi Hayase

    Solar Energy Materials and Solar Cells   159   625 - 632   2017.01

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    Language:English   Publishing type:Research paper (scientific journal)

    DOI: 10.1016/j.solmat.2015.10.033

    Kyutacar

    Other Link: http://www.sciencedirect.com/science/article/pii/S0927024815005449

  • Photophysical characterization and BSA interaction of the direct ring carboxy functionalized unsymmetrical NIR cyanine dyes Reviewed

    Maryala Saikiran, Daisuke Sato, Shyam S Pandey, Takeshi Ohta, Shuzi Hayase, Tamaki Kato

    Dyes and Pigments   140   6 - 13   2017.01

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    DOI: 10.1016/j.dyepig.2017.01.015

    Kyutacar

    Other Link: http://www.sciencedirect.com/science/article/pii/S0143720816307975

  • Transparent conductive oxide-less dye-sensitized solar cells consisting of dye-cocktail and cobalt based redox electrolyte Reviewed

    17 ( 7 )   4748 - 4754   2017.01

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    Language:English   Publishing type:Research paper (scientific journal)

    DOI: 10.1166/jnn.2017.13746

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  • Transparent conductive oxide-less back contact dye-sensitized solar cells using flat titanium sheet with microholes for photoanode fabrication Reviewed

    7 ( 1 )   2017.01

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    Language:English   Publishing type:Research paper (scientific journal)

    DOI: 10.1117/1.JPE.7.015501

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  • Influence of backbone structure on orientation of conjugated polymers in the dynamic casting of thin floating-films Reviewed

    619   125 - 130   2016.11

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    DOI: 10.1016/j.tsf.2016.11.015

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  • Facile Synthesis and Characterization of Sulfur Doped Low Bandgap Bismuth Based Perovskites by Soluble Precursor Route Reviewed

    Murugan Vigneshwaran, Takeshi Ohta, Satoshi Iikubo, Gaurav Kapil, Teresa S Ripolles, Yuhei Ogomi, Tingli Ma, Shyam S Pandey, Qing Shen, Taro Toyoda, Kenji Yoshino, Takashi Minemoto, Shuzi Hayase

    Chemistry of Materials   28 ( 18 )   6336 - 6340   2016.09

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    DOI: 10.1021/acs.chemmater.6b02315

    Other Link: http://pubs.acs.org/doi/abs/10.1021/acs.chemmater.6b02315

  • Enhancement of carrier mobility along with anisotropic transport in non-regiocontrolled poly (3-hexylthiophene) films processed by floating film transfer method Reviewed

    Manish Pandey, Shuichi Nagamatsu, Shyam S Pandey, Shuzi Hayase, Wataru Takashima

    Organic Electronics   38   115 - 120   2016.08

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    DOI: 10.1016/j.orgel.2016.08.003

    Other Link: http://www.sciencedirect.com/science/article/pii/S156611991630341X

  • Indoor Light Performance of Coil Type Cylindrical Dye Sensitized Solar Cells Reviewed

    Gaurav Kapil · Yuhei Ogomi · Shyam S. Pandey · Tingli Ma · Shuzi Hayase ·

    Journal of Nanoscience and Nanotechnology   16 ( 4 )   3183 - 3187   2016.04

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    Language:English   Publishing type:Research paper (scientific journal)

    DOI: 10.1166/jnn.2016.12324

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  • Effect of Addition of KI on the Hydrothermal Growth of ZnO Nanostructures Towards Hybrid Optoelectronic Device Applications Reviewed

    Anubha bilgaiyan · Tejendra Dixit · Gaurav Kapil · Shyam S Pandey · Shuji Hayase Iyamperumal Anand Palani · Vipul Singh ·

    Journal of Nanoscience and Nanotechnology   16 ( 4 )   3301 - 3306   2016.04

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    Language:English   Publishing type:Research paper (scientific journal)

    DOI: 10.1166/jnn.2016.12316

  • Parametric Optimization of Experimental Conditions for Dye-Sensitized Solar Cells based on Far-red Sensitive Squaraine Dye Reviewed

    Takuya Morimoto, Naotaka Fujikawa, Yuhei Ogomi, Shyam S. Pandey, Shuzi Hayase

    Journal of Physics:Conference Series   704   012002-1 - 012002-7   2016.04

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    DOI: 10.1088/1742-6596/704/1/012002

    Kyutacar

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  • Tandem Dye-Sensitized Solar Cells Based on TCO-less Back Contact Bottom Electrodes Reviewed

    Ajay K. Baranwal, Naotaka Fujikawa, Terumi Nishimura, Yuhei Ogomi, Shyam S. Pandey, Tingli Ma and Shuzi Hayase

    Journal of Physics:Conference Series   704   012003-1 - 012003-8   2016.04

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    DOI: 10.1088/1742-6596/704/1/012003

    Kyutacar

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  • Orientation Characteristics of Non-regiocontrolled Poly (3-hexyl-thiophene) Film by FTM on Various Liquid Substrates Reviewed

    M Pandey, S Nagamatsu, S S Pandey, S Hayase and W Takashima

    Journal of Physics:Conference Series   704   012005-1 - 012005-7   2016.04

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    Language:English   Publishing type:Research paper (scientific journal)

    DOI: 10.1088/1742-6596/704/1/012005

    Kyutacar

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  • Photophysical investigations of squaraine and cyanine dyes and their interaction with bovine serum albumin Reviewed

    M Saikiran, D Sato, S S Pandey and T Kato

    Journal of Physics:Conference Series   704   012012-1 - 012012-10   2016.04

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    DOI: 10.1088/1742-6596/704/1/012012

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  • A Special Section on Recent Progress in Nano-Molecular Electronics Reviewed

    Katsuhiko Ariga, Takaaki Manaka, Shyam S Pandey

    Journal of Nanoscience and Nanotechnology   16 ( 4 )   3157 - 3158   2016.04

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    DOI: 10.1166/jnn.2016.12275

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  • Design of far-red sensitizing squaraine dyes aiming towards the fine tuning of dye molecular structure Reviewed

    16 ( 4 )   3282 - 3288   2016.04

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    DOI: 10.1166/jnn.2016.12304

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  • Enhancing the performance of transparent conductive oxide-less back contact dye-sensitized solar cells by facile diffusion of cobalt species through TiO2 nanopores Reviewed

    Md Zaman Molla, Minobu Kawano, Ajay K Baranwal, Shyam S Pandey, Yuhei Ogomi, Tingli Ma, Shuzi Hayase

    RSC Advances   6 ( 40 )   33353 - 33360   2016.03

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    DOI: 10.1039/c6ra04894c

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  • First principles analysis of oxygen vacancy formation and migration in Sr 2 BMoO 6 (B= Mg, Co, Ni) Reviewed

    Shuai Zhao, Liguo Gao, Chunfeng Lan, SHYAM S PANDEY, Shuji Hayase and Tingli Ma

    RSC Advances   6 ( 38 )   31968 - 31975   2016.03

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    DOI: 10.1039/C6RA05581H

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  • Oxygen vacancy formation and migration in double perovskite Sr<inf>2</inf>CrMoO<inf>6</inf>: A first-principles study Reviewed

    6 ( 49 )   43034 - 43040   2016.01

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    DOI: 10.1039/c6ra05581h

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  • First principles analysis of oxygen vacancy formation and migration in Sr<inf>2</inf>BMoO<inf>6</inf> (B = Mg, Co, Ni) Reviewed

    6 ( 38 )   31968 - 31975   2016.01

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    Language:English   Publishing type:Research paper (scientific journal)

    DOI: 10.1039/c6ra02297a

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  • Effect of Varying Alkyl Chain Length on Thermal Decomposition Temperature of Zinc (II) Xanthates and its Impact on Curing of Epoxy Resin Reviewed

    Tarun Chand Vagvala*, Shyam Sudhir Pandey, Suvratha Krishnamurthy and Shuzi Hayase

    Zeitschrift für anorganische und allgemeine Chemie   642 ( 2 )   134 - 139   2015.11

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    DOI: 10.1002/zaac.201500639

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  • Effects of different chloride precursors on crystal growth of lead halide perovskites Reviewed

    Vigneshwaran Murugan, Yuhei Ogomi, Shyam S Pandey, Taro Toyoda, Qing Shen, Shuzi Hayase

    Applied Physics Express   8 ( 12 )   125501-1 - 125501-4   2015.11

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    DOI: 10.7567/APEX.8.125501

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  • Relationship between diffusion of Co 3+/Co 2+ redox species in nanopores of porous titania stained with dye molecules, dye molecular structures, and photovoltaic performances Reviewed

    Minobu Kawano, Tsubasa Nishiyama, Yuhei Ogomi, Shyam S Pandey, Tingli Ma, Shuzi Hayase

    RSC Advances   5 ( 102 )   83725 - 83731   2015.10

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    DOI: 10.1039/c5ra11992h

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  • Combining novel device architecture and NIR dye towards the fabrication of transparent conductive oxide-less tandem dye sensitized solar cells Reviewed

    Ajay Kumar Baranwal, Naotaka Fujikawa, Azwar Hayat, Yuhei Ogomi, Shyam S Pandey, Tingli Ma, Shuzi Hayase

    Applied Physics Express   8 ( 10 )   102301-1 - 102301-3   2015.09

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    DOI: 10.7567/APEX.8.102301

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  • Investigation of metal xanthates as latent curing catalysts for epoxy resin via formation of in-situ metal sulfides Reviewed

    Tarun Chand Vagvala, Shyam Sudhir Pandey, Yuhei Ogomi, Tingly Ma, Shuzi Hayase

    INORGANICA CHIMICA ACTA   435   292 - 298   2015.08

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    DOI: 10.1016/j.ica.2015.07.020

  • First principles study on the electronic and optical properties of B-site ordered double perovskite Sr 2 MMoO 6 (M= Mg, Ca, and Zn) Reviewed

    Shuai Zhao, Chunfeng Lan, Jie Ma, Shyam S Pandey, Shuzi Hayase, Tingli Ma

    Solid State Communications   213-214   19 - 23   2015.04

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    DOI: 10.1016/j.ssc.2015.04.012

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  • Simple Metal-Free Dyes from Triphenylamine for DSSC: A Comparative Study of Two Different Anchoring Groups

    K. Narayanaswami, T. Swetha, Gaurav Kapil, Shyam S. Pandey, Shuzi Hayase and Surya Prakash Singh

    Electrochimica Acta   169   256 - 263   2015.04

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    DOI: 10.1016/j.electacta.2015.04.071

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  • Nonisothermal curing kinetics of epoxy resin composite utilizing Ga (III) xanthate as a latent catalyst Reviewed

    Tarun Chand Vagvala*, Gaurav Kapil, Shyam S. Pandey, Yuhei Ogomi and Shuzi Hayase*

    Journal of Applied Polymer Science   132 ( 26 )   42149-1 - 42149-7   2015.03

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    DOI: 10.1002/app.42149

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  • Dye-sensitized solar cells based on axially ligated phosphorus-phthalocyanine dyes Reviewed

    Azwar Hayat, Gururaj M Shivashimpi, Terumi Nishimura, Naotaka Fujikawa, Yuhei Ogomi, Yoshihiro Yamaguchi, Shyam S Pandey, Tingli Ma, Shuzi Hayase

    Applied Physics Express   8 ( 4 )   047001-1 - 047001-4   2015.03

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    DOI: 10.7567/APEX.8.047001

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    Other Link: http://iopscience.iop.org/1882-0786/8/4/047001

  • Complete Photodynamics of the Efficient YD2-o-C8 Based Solar Cell Reviewed

    Piotr Piatkowski, Cristina Martin, Maria Rosaria di Nunzio, Boiko Cohen, Shyam S Pandey, Shuzi Hayase, Abderrazzak Douhal

    Piotr Piatkowski, Cristina Martin, Maria Rosaria di Nunzio, Boiko Cohen, Shyam S Pandey, Shuzi Hayase, Abderrazzak Douhal   118   29674 - 29687   2014.11

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    DOI: 10.1021/jp510761z

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  • A COMBINED THEORETICAL AND EXPERIMENTAL APPROACHES TOWARDS DESGNING NIR DYES FOR DYE-SENSITIZED SOLAR CELLS Reviewed

    YOSHIHIRO YAMAGUCHI, SHYAM S. PANDEY, NAOTAKA FUJIKAWA, YUHEI OGOMI, SHUZI HAYASE

    Journal of Engineering Science and Technology   9   53 - 66   2014.10

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  • A combined theoretical and experimental approaches towards designing nir dyes for dye-sensitised solar cells Reviewed

    9 ( Spec. Issue on Applied Engineering and Sciences (SAES2013), October 2014 )   51 - 65   2014.10

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  • Titanium wire engineering and its effect on the performance of coil type cylindrical dye sensitized solar cells Reviewed

    Gaurav Kapil, Shyam S Pandey, Yuhei Ogomi, Tingli Ma, Shuzi Hayase

    Organic Electronics   15   3399 - 3405   2014.09

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    DOI: 10.1016/j.orgel.2014.09.023

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  • Tandem dye-sensitized solar cells with a back-contact bottom electrode without a transparent conductive oxide layer Reviewed

    AK Baranwal, T Shiki, Y Ogomi, SS Pandey, T Ma, S Hayase

    RSC Advances   4   47735 - 47742   2014.09

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    DOI: 10.1039/c4ra07539k

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  • Transparent conductive oxide-less back contact dye-sensitized solar cells using cobalt electrolyte Reviewed

    Md. Zaman Molla, Norihiro Mizukoshi, Hiroaki Furukawa, Yuhei Ogomi, Shyam S. Pandey, Tingli Ma and Shuzi Hayase

    Progress in Photovoltaic Research and Applications   2014.06

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    DOI: 10.1002/pip.2526

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  • Graphene Oxide Based Biosensor for Food Toxin detection Reviewed

    Saurabh Srivastava, Md. Azahar Ali, Seema Umrao, Upendra Parashar, Anchal Srivastava, Gajjala Sumana, B. D. Malhotra, Shyam Sudhir Pandey and Shuzi Hayase

    Applied Biochemistry and Biotechnology   174   960 - 970   2014.06

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    DOI: 10.1007/s12010-014-0965-4

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  • Template Assisted Electrochemical Growth of Polypyrrole Nanotubes for Development of High Sensitivity Glucose Biosensor Reviewed

    Pragya Agar Palod, Shyam S. Pandey, Shuzi Hayase and Vipul Singh

    Applied Biochemistry and Biotechnology   174   1059 - 1072   2014.06

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    DOI: 10.1007/s12010-014-0988-x

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  • Far-Red Sensitizing Octatrifluorobutoxy Phosphorous Triazatetrabenzo-corrole: Synthesis, Spectral Characterization and Aggregation Studies Reviewed

    Gururaj M. Shivashimpi, Shyam S. Pandey, Azwar Hayat, Naotaka Fujikawa, Yuhei Ogomi, Yoshihiro Yamaguchi, Shuzi Hayase

    Journal of Photochemistry and Photobiology A:Chemistry   289   53 - 59   2014.06

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    DOI: 10.1016/j.jphotochem.2014.05.011

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  • Gallium (III) xanthate as a novel thermal latent curing agent for epoxy resin composite Reviewed

    Tarun Chand Vagvala, SHYAM S PANDEY, Yuhei Ogomi, Shuji Hayase

    RSC Advances   4   24658 - 24661   2014.05

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    DOI: 10.1039/c4ra03151b

  • All solid perovskite solar cells with HOCO-R-NH3I anchor group inserted between porous TiO2 and perovskite Reviewed

    Yuhei Ogomi, Atsushi Morita, Shota Tsukamoto, Takahiro Saitho, Qing Shen, Taro Toyoda, Kenji Yoshino, Shyam S. Pandey, Tingli Ma and Shuzi Hayase;

    Journal of Physical Chemistry C   118 ( 30 )   16651 - 16659   2014.05

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    DOI: 10.1021/jp412627n

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  • Fabrication and characterization of coil type transparent conductive oxide less cylindrical dye-sensitized solar cells Reviewed

    Gaurav Kapil, Jin Ohara, Yuhei Ogomi, SHYAM S PANDEY, Tingli Ma and Shuzi Hayase

    RSC Advances   4   22959 - 22963   2014.05

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    DOI: 10.1039/c4ra02999b

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  • Spectroscopy and Dynamics of YD2-o-C8 in Solution and Interacting with Alumina Nanoparticles Electrode Reviewed

    Maria Rosaria di Nunzio, Boiko Cohen, Shyam S. Pandey, Shuzi Hayase, Giovanni Piani, and Abderrazzak Douhal

    Journal of Physical Chemistry C   118   11365 - 11376   2014.05

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    DOI: 10.1021/jp503449q

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  • Transparent conductive oxide-less back contact dye-sensitized solar cells using Zinc porphyrin dye employing cobalt complex redox shuttle Reviewed

    1538 - 1542   2014.01

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    DOI: 10.1109/PVSC.2014.6925209

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  • Flexible transparent conductive oxide-less cylinder dyesensitized solar cells Reviewed

    2013.11

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  • Dye sensitized solar cells consisting of metallophthalocyanine axially anchored on metal oxide nanoparticles through metal-o-metal linkages-difference in photovoltaic performances between TiO<inf>2</inf> and SnO<inf>2</inf> electrode Reviewed

    2 ( 1 )   2013.11

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    DOI: 10.1149/2.014301jss

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  • Effect of extended π-conjugation on photovoltaic performance of dye sensitized solar cells based on unsymmetrical squaraine dyes Reviewed

    69 ( 12 )   2633 - 2639   2013.03

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    DOI: 10.1016/j.tet.2013.01.036

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  • Effect of extended p-conjugation on photovoltaic performance of dye-sensitized solar cells based on unsymmetrical squaraine dyes Reviewed

    Shyam S. Pandey, Rie Watanabe, Naotaka Fujikawa, Gururaj M. Shivashimpi, Yuhei Ogomi, Yoshihiro Yamaguchi and Shuzi Hayase

    Tetrahedron   69   2633 - 2639   2013.01

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  • Electrophoretic deposition onto an insulator for thin film preparation toward electronic device fabrication Reviewed

    Shougo Miyajima, Shuichi Nagamatsu, Shyam S. Pandey, Shuzi Hayase, Keiichi Kaneto and Wataru Takashima

    Applied Physics Letters   101   193305-1 - 193305-4.   2012.11

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    DOI: 10.1063/1.4766126

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  • Dye sensitized solar cells consisting of metallophthalocyanines axially anchored on metal-oxide nanoparticles through Metal-O-metal linkages-Difference in photovoltaic performances between TiO2 and SnO2 electrodes Reviewed

    Byung-wook Park, Qing Shen, Yuhei Ogomi, Shyam S. Pandey, Taro Toyoda and Shuzi Hayase.

    ECS Journal of Solid-State Science and Technology   2 ( 1 )   Q6 - Q11   2012.11

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  • Dye-Sensitized Solar Cells based on Novel Far-red Sensitizing Unsymmetrical Squaraine Dye containing Pyrroloquinoline Moiety Reviewed

    Shyam S. Pandey, Naotaka Fujikawa, Rie Watanabe, Yuhei Ogomi, Yoshihiro Yamaguchi and Shuzi Hayase

    Japanese Journal of Applied Physics   51 ( 10 )   10NE12-1 - 10NE12-5   2012.10

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  • Differences in Dye-Sensitized Photovoltaic Behaviours between SnO2 and TiO2 Electrodes Reviewed

    Kengo Sadamasu, Yuhei Ogomi, Shyam S. Pandey and Shuzi Hayase

    Japanese Journal of Applied Physics   51 ( 10 )   10NE05-1 - 10NE05-5   2012.10

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    DOI: 10.1143/JJAP.51.10NE05

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  • Relating the Photodynamics of Squaraine-Based Dye-Sensitized Solar Cells to the Molecular Structure of the Sensitizers and to the Presence of Additives Reviewed

    G. de Miguel, M. Marchena, B. Cohen, S. S. Pandey, S. Hayase and A. Douhal

    Journal of Physical Chemistry-C   116 ( 42 )   22157 - 22168   2012.10

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    DOI: 10.1021/jp306125y

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  • Dye sensitized solar cells based on novel far red sensitizing unsymmetrical squaraine dye containing pyrroloquinoline moiety Reviewed

    51 ( 10 PART 2 )   2012.10

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    DOI: 10.1143/JJAP.51.10NE12

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  • Back contact dye-sensitized solar cells of various shapes without transparent conducing oxides (TCO-less DCCSs)-

    Jun Usagawa, Takeshi Kougo, Yuhei Ogomi, Shyam S. Pandey and Shuzi Hayase

    Trends in Advanced Sensitized and Organic Solar Cells   2012.10

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  • Solution processable thin film organic photovoltaic cells based on far red sensitive2 soluble squaraine dye Reviewed

    Shyam S. Pandey, Takafumi Mizuno, Sandeep K. Das, Yuhei Ogomi and Shuzi Hayase.

    Thin Solid Films   522   401 - 406   2012.08

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    DOI: 10.1016/j.tsf.2012.08.043

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  • Novel unsymmetrical squaraine dye bearing cyanoacrylic acid anchoring group and its photosensitization behaviour Reviewed

    Gururaj M. Shivashimpi, Shyam S. Pandey, Rie Watanabe, Naotaka Fujikawa, Yuhei Ogomi, Yoshihiro Yamaguchi and Shuzi Hayase

    Tetrahedron Letters   53 ( 40 )   5437 - 5440   2012.07

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    DOI: 10.1016/j.tetlet.2012.07.125

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  • Femto- to millisecond photophysical characterization of indole-based squaraines adsorbed on TiO <inf>2</inf> nanoparticle thin films Reviewed

    116 ( 22 )   12137 - 12148   2012.06

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    DOI: 10.1021/jp302928f

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  • Femto to Millisecond Photophysical Characterization of Indole-based Squaraines Adsorbed on TiO2 Nanoparticle Thin Films. Reviewed

    de Miguel, Gustavo; Marchena, Maria Jose; Ziolek, Marcin; Pandey, Shyam; Hayase, Shuzi; Douhal, Abderrazzak

    Journal of Physical Chemistry-C;   116 ( 22 )   12137 - 12148   2012.05

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    Other Link: https://pubs.acs.org/journal/jpccck

  • Flexible Transparent Conductive Oxide-less Flat and Cylinder Dye-Sensitized Solar Cells Reviewed

    Jun Usagawa, Takeshi Kougo, Kengo Sadamasu, Shyam S. Pandey, Yuhei Ogomi and Shuzi Hayase

    Journal of Photonics for Energy   2 ( 1 )   021011-1 - 021011-10   2012.05

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    DOI: 10.1117/1.JPE.2.021011

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  • Photophysics of H-and J-aggregates of Indole based squaraines in solid state. Reviewed

    G. de Miguel, M. Ziolek, M, Zitnan, J. A. Organero, S. S. Pandey, S Hayase and A. Douhal

    Journal of Physical Chemistry-C   116 ( 17 )   9379 - 9389   2012.04

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    DOI: 10.1021/jp210281z

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  • Multiple electron injection dynamics in linearly linked two dye-co-sensitized nanocrystalline metal oxide electrode for dye sensitized solar cells;; Reviewed

    Qing Shen, Y. Ogomi, Byung-wook Park, Takafumi Inoue, Shyam S. Pandey, Akari Miyamoto, Shinsuke Fujita, Kenji Katayama, Taro Toyoda and Shuzi Hayase

    Physical Chemistry and Chemical Physics   14   4605 - 4613   2012.01

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    DOI: 10.1039/c2cp23522f

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  • Transparent conductive oxide less flexible dye-sensitized solar cells with flat and cylinder shapes Reviewed

    1435 ( January )   51 - 54   2012.01

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    DOI: 10.1557/opl.2012.1695

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  • Femto to millisecond observations of indole-based squaraines molecules photodynamics in Solution Reviewed

    G. de Miguel, M. Marchena, M. Ziolek, M, Zitnan, S. S. Pandey, S Hayase and A. Douhal

    Physical Chemistry and Chemical Physics   2011.12

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    DOI: 10.1039/c1cp22864a

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  • Multiple electron injection from dyes to titania layer for high efficiency-dye-sensitized solar cells Reviewed

    001187 - 001191   2011.12

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    DOI: 10.1109/PVSC.2011.6186168

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  • Transparent Conductive Oxide-less thee-dimentional cylindrical dye-sensitized solar cell fabricated with flexible metal mesh electrode Reviewed

    Jun Usagawa, Shyam S. Pandey, Yuhei Ogomi, Sho Noguchi, Yoshihiro Yamaguchi and Shuzi Hayase

    Progress in Photovoltaics Research and Applications   2011.11

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    DOI: 10.1002/pip.1223

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  • Aiming at high efficiency dye-sensitized solar cells - From the view point of photoconversion interface Reviewed

    79 ( 10 )   761 - 764   2011.10

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  • Fine tuning the structure of unsymmetrical squaraine dyes towards the development of efficient dye sensitized solar cells Reviewed

    Shyam S. Pandey, Rie Watanabe, Naotaka Fujikawa, Yuhei Ogomi, Yoshihiro Yamaguchi and Shuzi Hayase

    SPIE Proceeding   8111   811116-1 - 811116-9   2011.09

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    USA   Sandiego, LA   2011.08.21  -  2011.08.26

    DOI: 10.1117/12.893354

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  • Investigating the Role of Dye Dipole on Open Circuit Voltage in Solid-State Dye-Sensitized Solar Cells Reviewed

    Shyam S Pandey, Kyung-Young Lee, Azwar Hayat, Yuhei Ogomi, and Shuzi Hayase

    Japanese Journal of Applied Physics   50 ( 6 )   06GF08-1 - 06GF08-4   2011.06

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    DOI: 10.1143/JJAP.50.06GF08

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  • Transparent conductive oxideless tandem dye-sensitized solar cells consisting of light-splitting structures Reviewed

    Jun Usagawa,Masaki Kaya,Yuhei Ogomi,Shyam S. Pandey,and Shuzi Hayase

    Journal of Photonics for Energy   1 ( 1 )   011110 - 1   2011.03

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    DOI: 10.1117/1.3555458

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  • Hybrid Dye-Sensitized Solar Cells Consisting of Double Titania Layers for Harvesting Light with Wide Range of Wavelengths Reviewed

    Kengo Sadamasu,Takafumi Inoue,Yuhei Ogomi,Shyam S. Pandey,and Shuzi Hayase

    Applied Physics Express   4 ( 2 )   022301 - 1   2011.01

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    DOI: 10.1143/APEX.4.022301

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  • TCO-less 3D-DYE-sensitized solar cells consisting of charge separation sheet and direction to high efficiency cells by using TCO-less structure Reviewed

    518 - 522   2010.12

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    DOI: 10.1109/PVSC.2010.5616802

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  • Electron Injection from Linearly Linked Two Dye Molecules to Metal Oxide Nanoparticles for Dye Sensitized Solar Cells Covering Wavelength Range from 400-950 nm Reviewed

    Byung-wook Park,Takafumi Inoue,Yuhei Ogomi,Akari Miyamoto,Shinsuke Fujita,Shyam S. Pandey and Shuzi Hayase

    Applied Physics Express   4 ( 1 )   012301 - 1   2010.12

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    DOI: 10.1143/APEX.4.012301

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  • Tandem dye-sensitized solar cells consisting of floating electrode in one cell Reviewed

    216 ( 2-3 )   104 - 109   2010.12

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    DOI: 10.1016/j.jphotochem.2010.07.025

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  • TCO-less 3D dye-sensitized solar cells consisting of charge separation sheet -tandem, hybrid, cylinder and fiber cells- Reviewed

    171 - 175   2010.12

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    DOI: 10.1109/NANO.2010.5698067

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  • Solvation Effect on the Ion Exchange in Polypyrrole Film doped with Sulfonated Polyaniline Reviewed

    Wataru Takashima,Hikaru Hashimoto,Kazuo Tominaga,Akihisa Tanaka,Shyam S. Pandey and Keiichi Kaneto

    Thin Solid Films, Vol. 519, pp. 1093-1099 (2010).   519   1093 - 1099   2010.08

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    DOI: 10.1016/j.tsf.2010.08.050

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  • Probing Mechanism of Dye Double Layer Formation from Dye Cocktail Solution for Dye Sensitized Solar Cells Reviewed

    Yuhei Ogomi,Shyam S. Pandey,Shunta Kimura and Shuzi Hayase

    Thin Solid Fims   519   1087 - 1092   2010.08

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    DOI: 10.1016/j.tsf.2010.08.049

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  • Tandem Dye-Sensitized Solar Cells Consisting of Nanoporous Titania Sheet Reviewed

    Kenshiro Uzaki,Shyam S. Pandey,Yuhei Ogomi and Shuzi Hayase

    Japanese Journal of Applied Physics, Vol. 49, No.-6, pp. 062301 (2010).   49 ( 6 )   082301 - 1   2010.08

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    DOI: 10.1143/JJAP.49.082301

    Scopus

    CiNii Article

  • Alkyl and Fluoro-alkyl Substituted Squaraine Dyes: A Prospective Approach Towards Development of Novel NIR Sensitizers Reviewed

    Shyam S. Pandey,Takafumi Inoue,Naotaka Fujikawa,Yoshihiro Yamaguchi and Shuzi Hayase

    Thin Solid Films   519   1066 - 1071   2010.08

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    DOI: 10.1016/j.tsf.2010.08.045

    Scopus

  • Tandem Dye Sensitized Solar Cells Consisting of Floating Electrode in One Cell Reviewed

    Kenshiro Uzaki,Shyam S. Pandey,and Shuzi Hayase

    Journal of Photochemistry and Photobiology A: Chemistry   216 ( 1 )   104 - 109   2010.08

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  • Substituent Effect in Direct Ring Functionalized Squaraine Dyes on Near Infra-Red Sensitization of NanocrystallineTiO2 for Molecular Photovoltaics Reviewed

    Shyam S. Pandey,Takafumi Inoue,Naotaka Fujikawa,Yoshihiro Yamaguchi and Shuzi Hayase

    Journal of Photochemistry and Photobiology A: Chemistry, Vol. 214, pp. 269-275 (2010)   214 ( 2-3 )   268 - 275   2010.07

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    DOI: 10.1016/j.jphotochem.2010.07.010

    Scopus

  • Synthesis and characterization of squaric acid based NIR dyes for their application towards dye sensitized solar cells Reviewed

    Takafumi Inoue,Shyam S. Pandey,Naotaka Fujikawa,Yoshiro Yamaguchi and Shuzi Hayase

    Journal of Photochemistry and Photobiology A: Chemistry, Vol 213, pp. 23-29 (2010).   213 ( 1 )   23 - 29   2010.04

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    DOI: 10.1016/j.jphotochem.2010.04.015

    Scopus

  • Tandem Dye Sensitized Solar Cells Consisting of Floating Electrode Supported by Non-Conductive Glass Mesh Reviewed

    Kenshiro Uzaki,Shyam S. Pandey,Yuhei Ogomi and Shuzi Hayase

    Advances in Science and Technology   74   157 - 163   2010.04

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  • Influence of nature of surface dipoles on observed photovoltage in dye-sensitized solar cells as probed by surface potential measurements Reviewed

    Shyam S. Pandey,Shohei Sakaguchi,Yoshiro Yamaguchi,Shuzi Hayase

    Organic Electronics   11 ( 3 )   419 - 426   2009.11

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    DOI: 10.1016/j.orgel.2009.11.021

    Scopus

  • Role of morphology on Photoluminescence quenching and depletion width formed at the interface of Aluminum and Poly(3-Alkylthiophene) Reviewed

    Vipul Singh,Shyam S Pandey,Wataru Takashima,and Keiichi Kaneto

    Japanese Journal of Applied Physics   41 ( 6 )   061503 - 1   2009.06

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  • Tandem Dye-Sensitized Solar Cells Fabricated on Glass Rod without Transparent Conductive Layers Reviewed

    Jun Usagawa,Shyam S. Pandey,Shuzi Hayase,Mitsuru Kono,and Yoshihiro Yamaguchi

    Applied Physics Express   2 ( 6 )   062203 - 1   2009.06

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  • Transparent Conductive Oxide layer-less dye-sensitized solar Cells consisting of floating electrode with gradient TiOx layer Reviewed

    Applied Physics Letters   94   093301 - 093301   2009.04

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  • Preparation of Double Dye-Layer Structure of Dye-Sensitized Solar Cells from Cocktail Solutions for Harvesting Light in Wide Range of Wavelengths Reviewed

    Japanese Journal of Applied Physics   48 ( 2 )   020213 - 020213   2009.04

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  • Optical and Electrical Characterization of Poly(3-hexylthiophene-2,5-diyl) Interface with Al and LiF Reviewed

    Japanese Journal of Applied Physics   47 ( 2B )   1251 - 1255   2008.04

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  • Characterization of Depletion Layer using Photoluminescence Technique Reviewed

    Applied Physics Express   1 ( 2 )   021801 - 021801   2008.04

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  • A comparative study of Al and LiF:Al interfaces with Poly (3-Hexylthiophene) using bias dependent photoluminescence technique Reviewed

    Organic Electronics   9 ( 5 )   790 - 796   2008.04

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  • Solvation contribution on the ion exchange in polypyrrole films doped with sulfonated polyaniline Reviewed

    Physical Chemistry and Chemical Physics   2008.04

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  • Evidence of Photoluminescence Quenching in Poly (3-hexylthiophene-2,5-diyl)due to injected charge carriers Reviewed

    Synthetic Metals   158 ( 7 )   283 - 286   2008.04

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  • Probing TiO2/dye Interface in Dye Sensitized Solar Cells using Surface Potential Measurement Reviewed

    Applied Physics Express   1 ( 10 )   105001 - 105001   2008.04

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  • Role of morphology on Photoluminescence quenching and depletion width formed at the interface of Aluminum and Poly(3-Alkylthiophene) Reviewed

    Japanese Journal of Applied Physics   2008.04

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  • Synthetic and Characterization of Dendritic Poly(L-lysine) containing Porphyrin-Fullerene Moieties Reviewed

    Synthetic Metals   157   311 - 317   2007.04

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  • Simultaneous co-immobilization of enzyme and a redox mediator in poly pyrrole film for the fabrication of an amperometric phenol biosensor Reviewed

    Current Applied Physics   5 ( 2 )   184 - 188   2005.04

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  • Patternable bi-ionic actuator: an example of new functionality of actuation, folding and unfolding of electrochemical spring Reviewed

    Sensors and Actuators B: Chemical   110 ( 1 )   120 - 124   2005.04

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  • Electrochemomechanical Deformation in Conducting Co-polymers containing Pyrrole and Anisidine Moieties Reviewed

    Reactive and Functional Polymers   58   103 - 110   2004.04

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  • Development of Amperometric Biosensor Based on Redox Mediator doped Polypyrrole Films Reviewed

    Journal of Applied Polymer Science   93   927 - 933   2004.04

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  • Enhanced Electrochemomechanical Deformation of Polyaniline Film by Optimization of pH and Electrolyte Concentration Reviewed

    Trans. Material Research Society   229 ( 3 )   771 - 774   2004.04

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  • Conserved Electrochemomechanical Activities of Polypyrrole Films in Complex Buffer Media Reviewed

    Sensors & Actuators B: Chemical   102   142 - 147   2004.04

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  • Improved Cathodic Expansions of Electrochemomechanical behavior of Polypyrrole Films Electrodeposited from Aerosol OT Emulsion Reviewed

    Chemistry Letters   33   996 - 996   2004.04

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  • Electrochemically Generated Deformation of Polyaniline Film Plasticized with DI-2-butoxy, 2-ethoxy ester of Sulfosuccinic acid Reviewed

    Sensors & Actuators B: Chemical   99   601 - 607   2004.04

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  • Electrochemomechanical Deformation studies of Hexacyanoferrate Ion doped Polypyrrole Film Reviewed

    Thin Solid Films   467   227 - 230   2004.04

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  • Enhanced Electrochemomechanical Activities of Polyaninile Films Towards High pH Region: Contribution of Donnan Effect Reviewed

    Electrochimica Acta   49   4239 - 4244   2004.04

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  • Investigation of bi-ionic Contribution for enhancement of Bending Actuation in Polypyrrole Film Reviewed

    Sensors & Actuators B: (Chemical)   89   48 - 52   2003.04

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  • Effect of Disorder on the Magnetic States in Pol(3-hexylthiophene) Reviewed

    Synthetic Metals   135-136   343 - 343   2003.04

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  • Bi-Ionic Actuators by Polypyrrole Films Reviewed

    Synthetic Metals   135-136   61 - 61   2003.04

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  • Enhanced Electrochemomechanical Behaviors of Polyanilne Films by Chloride Concentrations Reviewed

    Chemistry Letters   32 ( 11 )   990 - 990   2003.04

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  • Photovoltaic Properties in Poly(3-alkylthiophene) based Heterojunction Cells Reviewed

    Current Applied Physics   3 ( 2-3 )   107 - 113   2003.04

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  • Proposal of Novel Actuators Using Conducting Polymer Laminates Reviewed

    Synthetic Metals   135-136   135 - 135   2003.04

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  • Structure-Property Correlation: Electrochemomechanical Deformation in Polypyrrole Films Reviewed

    Thin Solid Films   438-439   206 - 211   2003.04

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  • Immobilization of Glucose Oxidase on to Langmuir Blodgett Films Poly(3-hexylthiophene) Reviewed

    Current Applied Physics   3 ( 2-3 )   275 - 279   2003.04

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  • Effect of Film Morphology on the Actuation Behavior in Polypyrrole Films Reviewed

    Synthetic Metals   135-136   59 - 59   2003.04

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  • Cyclic-voltammetry and electrochemomechanical deformation of freestanding polypyrrole film in diluted media Reviewed

    Thin Solid Films   438-439   339 - 345   2003.04

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  • Temperature Dependence of Rectification and Photovoltaic Effects in Regioregular Poly(3-alkylthiophene) films at the Schottky Junction of Al Electrode Reviewed

    Current Applied Physics   3 ( 2-3 )   321 - 324   2003.04

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  • Electrochemomechanical Deformation of Polypyrrole Film in Complex Buffer Media Reviewed

    IPMM CD Book   2003.04

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    2003.04  -  2003.04

  • Cyclic Step-voltammetric Analysis of Cation-driven and Anion-driven Actuuation in Polypyrrole Films Reviewed

    Japanese Journal of Applied Physics   41   7532 - 7536   2002.04

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  • Photocarrier Transport Modulated by Film Morphology in Regioregular Poly(3-hexyl thiophene) Reviewed

    Thin Solid Films   393   334 - 342   2001.04

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  • Photocarrier Generation in Regioregular Poly(3-alkylthiophene) Photovoltaic Cells Reviewed

    Synthetic Metals   121   1565 - 1565   2001.04

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  • Photocarrier Mobility in Poly(2-methoxyaniline) Reviewed

    Journal of Applied Polymer Science   79 ( 8 )   1506 - 1512   2001.04

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  • Photovoltaic Cell using High Mobility Poly(alkylthiophene)s and TiO2 Reviewed

    Synthetic Metals   121   1537 - 1537   2001.04

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  • Poly(3-Butylthiophene):Conjugated Polymer with Record High TOF Mobility Reviewed

    Synthetic Metals   121   1561 - 1561   2001.04

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  • Dispersivity of Carrier Transport related with Molecular Arrangement in Regioregular Poly(3-alkylthiophene) Reviewed

    Synthetic Metals   119   563 - 563   2001.04

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  • Photocarrier Transport in Non-Uniform Field Based on Schottky Cell for the Time-of-Flight Measurements Poly(3-alkyl thiophene) Films Reviewed

    Japanese Journal of Applied Physics   40 ( 8 )   4933 - 4937   2001.04

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  • Effect of Regioregularity on carrier transport in Poly(alkylthiophene) films with various alkyl chain lengths Reviewed

    Current Applied PhysICW   1 ( 1 )   90 - 97   2001.04

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  • Photocarrier Transport in Regioregular Poly(3-octadecylthiophene) Reviewed

    Japanese Journal of Applied Physics   40   5350 - 5356   2001.04

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  • Photocarrier Transport in Processable Poly(3-alktlthiophenes) Reviewed

    Synthetic Metals   121   1563 - 1563   2001.04

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  • Morphology Effect on Photocarrier Transport in Regioregular Poly(3-alkylthiphene) Films

    IEICE-OME   ED-2001   41 - 47   2001.04

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  • Thermal Analysis of Chemically Synthesized Polyemeraldine Base Reviewed

    Journal of Applied Polymer Science   75 ( 1 )   145 - 149   2000.04

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  • Mechanism of Photocarrier Generation and Transport in Poly(3-alkylthiophene) films Reviewed

    Japanese Journal of Applied Physics   39   6309 - 6315   2000.04

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  • Effect of Synthetic Impurities on Photocarrier Transport in Poly(3-hexylthiophene) Reviewed

    IEICE Transactions on Electronics   E-83 ( 7 )   1088 - 1093   2000.04

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  • Role of Processing Solvents in Photocarrier Transport of Polyaniline Reviewed

    Japqnese Journal of Applied Physics   39 ( 7A )   4445 - 4450   2000.04

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  • Regioregularity Vs Regiorandomness: Effect on Photocarrier Transport in Poly(3-hexyl thiophene) Reviewed

    Japanese Journal of Applied Physics   39   94 - 97   2000.04

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  • Covalent Immobilization of Glucose Oxidase to Poly(o-aminobenzoic acid) for application to Glucose Biosensor Reviewed

    Journal of Applied Polymer Science   78 ( 3 )   662 - 667   2000.04

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  • Time of Flight Mobility of Poly(3-alkylthiophenes) Reviewed

    W. Takashima,S. S. Pandey,M. Rikukawa,and K. Kaneto

    Technical report of IEICE   OME99 ( 231 )   29 - 34   2000.04

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  • Photocarrier Transport Phenomena in Polythiophene derivatives Reviewed

    S. Nagamatsu,Shyam S. Pandey,W. Takashima,K. Kaneto

    Pusan-Kyeongnam/Kyushu-Seibu joint International Symposium   14 - 14   1999.11

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    Seoul (South Korea)   Chinju   1999.11.02  -  1999.11.03

  • Carrier Mobility of Conducting Polymers Reviewed

    W. Takashima,S. Nagamatsu,W. Y. Lim,K. Endo,M. Kaneko,S. S. Pandey and K. Kaneto

    Pusan-Kyeongnam/Kyushu-Seibu joint International Symposium   1999.11

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    South Korea   Chinju   1999.11.02  -  1999.11.03

  • Effect of Regiospecificity on Photocarrier Mobility in Poly(3-hexylthiophene Reviewed

    Shyam S. Pandey,S. Nagamatsu,M. Kaneko,W. Takashima,M. Rikukawa and K. Kaneto

    Pusan-Kyeongnam/Kyushu-Seibu joint International Symposium   1999.11

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    South Korea   Chinju   1999.11.02  -  1999.11.03

  • a Reviewed

    M. Kaneko,Shyam S. Pandey,K. Takayama,S. Nagamatsu,Lim W. Y,W. Takashima,K. Kaneto and M. Rikukawa

    1999.11

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    South Korea   Chinju   1999.11.02  -  1999.11.03

  • Time-of-Flight Photocarrier Mobility in Langmuir-Blodgett Films of Regioregular Poly(3-hexyl thiophene Reviewed

    Japanese Journal of Applied Physics   38   6768 - 6771   1999.04

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  • Photocarrier Mobility in Regioregular Poly(3-hexylthiophene) Studied by Time-of-Flight Method Reviewed

    Japaneswe Journal of Applied Physics   38   1188 - 1190   1999.04

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  • TOF Mobility in Poly(3-hexylthiophene)

    IEICE-OME-99   17   29 - 29   1999.04

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    Language:English   Publishing type:Research paper (bulletin of university, research institution)

  • Dielectric relaxation in thin conducting polyaniline films Reviewed

    Polymer   39 ( 15 )   3399 - 3404   1998.04

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    Language:English   Publishing type:Research paper (scientific journal)

  • Electrical Properties of Metal(Indium)/PolyanilineSchottky devices Reviewed

    Journal of Applied Polymer Science   65   2745 - 2745   1997.04

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    Language:English   Publishing type:Research paper (scientific journal)

  • A.C. Conductivity of Polyemeraldine Base Reviewed

    Journal of Physics Condensed Matter   6   8913 - 8922   1994.04

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  • Muon studies of conducting polymers Reviewed

    Synthetic Metals   55   677 - 677   1993.04

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    Language:English   Publishing type:Research paper (scientific journal)

  • Optical and Electrical Characteristics of the Electrodeposited Polypyrrole Films Reviewed

    Journal of Applied Polymer Science   50 ( 3 )   411 - 411   1993.04

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    Language:English   Publishing type:Research paper (scientific journal)

  • Photocarrier mobility in processable polyaniline Reviewed

    Journal of Applied Physics   74   2109 - 2109   1993.04

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    1993.04  -  1993.04

  • Synthesis and Characterization of Poly(aniline-co-orthoanisidine): A processable conducting polymer Reviewed

    Macromolecules   26   3190 - 3190   1993.04

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    1993.04  -  1993.04

  • Some recent studies on Metal/polyaniline Schottky devices; Reviewed

    Journal of Applied Polymer Science   44 ( 5 )   911 - 911   1992.04

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  • Vacuum Deposited Metal/Polyaniline Schottky Diode Reviewed

    Applied Physics Letters   61   1219 - 1219   1992.04

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Publications (Books)

Conference Prsentations (Oral, Poster)

  • Investigation on the Effect of Lattice Strain on the Piezoelectric Response of ZnO-based Nanogenerators.Nisarg Purabiarao Hirens Received the Best Present Award for this Research presentation!

    Nisarg Hirens Purabiarao, Siddhi Ramer, Vipul Singh, I.A. Palani, Shyam S Pandey

    International Conference on New Materials for Industry and Medicine (NMIM-24), India from January 30-31, 2024  2024.01  DST-SERB-CSIR India

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    Event date: 2024.01.30 - 2024.01.31   Language:English   Country:India  

    Nisarg Purabiarao Hirens Received the Best Present Award for this Research presentation.

  • Organic field effect transistors as transducer for non-enzymatic glucose sensing through extended-gate system based on CuO/MXenes nanocomposite. Harshita Rai Received the Best Presentation Award for this Excellent Work and Research Presentation.

    Harshita Rai, Kshitij RB Singh, Safalmani Pradhan, Shyam S. Pandey

    International Conference on New Materials for Industry and Medicine (NMIM-24), India from January 30-31, 2024  2024.01  DST-SERB-CSIR India

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    Event date: 2024.01.30 - 2024.01.31   Language:English   Country:India  

    Harshita Rai Received the Best Presentation Award for this Excellent Work and Research Presentation.

  • Investigating the role of dye molecular structure on the performance of the solid-state dye-sensitized solar cells; This presentation received Best Presentation Award (Bronze Medal) in Engineering & Technology Catagory!

    Yuki Kurokawa, Shyam S. Pandey

    11th International Symposium on Applied Engineering and Sciences (SAES-2023) 20th – 21st Nov 2023, UNIVERSITI PUTRA MALAYSIA, SERDANG SELANGOR, MALAYSIA  2023.11  UPM Malaysia

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    Event date: 2023.11.20 - 2023.11.21   Language:English   Country:Malaysia  

    Yuki Kurokawa Received the Best Presentation Award (Bronze Medal) for this Research Presentation.

  • Design of a Novel PET-Controlled NIR-Sensitive Unsymmetrical Squaraine Dye and its Interaction with BSA; This paper received best presentation award (Gold Medal) under Biomedical Science Catagory!

    Shekhar Gupta, Priyanka, Shyam S. Pandey, Tamaki Kato

    11th International Symposium on Applied Engineering and Sciences (SAES-2023) 20th – 21st Nov 2023, UNIVERSITI PUTRA MALAYSIA, SERDANG SELANGOR, MALAYSIA  2023.11  UPM Malaysia

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    Event date: 2023.11.20 - 2023.11.21   Language:English   Country:Malaysia  

    Shekhar Gupta Received the Best Presentation Award (Gold Medal) for his Excellent Research Work and Presentation.

  • Bistable Resistive Switches fabricated by Unidirectional Floating Film Transfer Method

    Shubham Sharma, Nikita Kumari, Shyam S. Pandey

    The 30th International Workshop on Active Matrix Flat Panel Displays and Devices (AM-FPD-23), Ryukoku University Avanti Kyoto Hall Kyoto, Japan, July 4-7, 2023.  2023.07 

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    Event date: 2023.07.04 - 2023.07.07   Language:English   Country:Japan  

  • Controlling Catalytic Activity of Pt-Free Counter Electrode Based on Conducting Polymer Thin Films for Dye-Sensitized Solar Cel

    Yuki Kurokawa, Takehito Kato, Shyam S. Pandey

    60th Kyushu Branch Chemical Society Meeting, Kitakyushu International Conference Center, Kokura, Kitakyushu, July 1, 2023.,   2023.03  Japan Electrochemical Society

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    Event date: 2023.03.01   Language:Japanese   Country:Japan  

  • Amicable Approaches for Immense Solar Energy Harvesting by Dye-Sensitized Solar Cells

    Shyam S. Pandey

    International Conference on Advances in Science and Technology for Sustainable Development Goals (IC-ASTSDGs-2024), AKS University, Satna, MP, India from March 11-12, 2024  2024.03 

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    Event date: 2024.03.11 - 2024.03.12   Language:English   Country:India  

  • Tailoring the Functional Materials and & Device Architecture for Low-Cost and Immense Solar Energy Harvesting Invited

    Shyam S. Pandey

    International Conference on New Materials for Industry and Medicine (NMIM-24), India from January 30-31, 2024  2024.01  DST-SERB-CSIR India

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    Event date: 2024.01.30 - 2024.01.31   Language:English   Country:India  

  • Near-Infrared Fluorescent Squaraine-Peptide Conjugates for Enhanced Detection of Chymotrypsin Activity

    Shekhar Gupta, Priyanka, Sai Kiran Mavletti, Shyam S. Pandey, Tamaki Kato

    International Conference on New Materials for Industry and Medicine (NMIM-24), India from January 30-31, 2024  2024.01  DST-SERB-CSIR India

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    Event date: 2024.01.30 - 2024.01.31   Language:English   Country:India  

  • Fabrication of Bifacial Dye-Sensitized Solar Cells (BF-DSSCs) Utilizing Wide Wavelength Photon Harvesting Squaraine Dyes

    Safalmani Pradhan, Shyam S. Pandey

    International Conference on New Materials for Industry and Medicine (NMIM-24), India from January 30-31, 2024  2024.01  DST-SERB-CSIR India

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    Event date: 2024.01.30 - 2024.01.31   Language:English   Country:India  

  • Clarifying the Dominant Role of Molecular Orientation in Conjugated Polymer Thin Films of Organic Conjugated Polymers

    Kumar Vivek Gaurav, Shubham Sharma, Nisarg Hirens Purabiarao, Shyam S. Pandey

    International Conference on New Materials for Industry and Medicine (NMIM-24), India from January 30-31, 2024  2024.01  DST-SERB-CSIR India

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    Event date: 2024.01.30 - 2024.01.31   Language:English   Country:India  

  • Fluorescence Detection of Elastase Enzyme by Peptide-Squaraine Dye Conjugate

    Sai Kiran Mavileti, Galyna Bila, Rostyslav Bilyy Jr, Valentyn Utka, Tetsuya Narimatsu, Tamaki Kato, Rostyslav Bilyy, Shyam S. Pandey

    International Conference on New Materials for Industry and Medicine (NMIM-24), India from January 30-31, 2024  2024.01  DST-SERB-CSIR India

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    Event date: 2024.01.30 - 2024.01.31   Language:English   Country:India  

  • Floating Film Transfer: A Facile and Cost-Effective Approach Towards Uniform Large Area Oriented Thin Films for Organic Electronic Devices

    Shyam S. Pandey

    The 30th International Display Workshop (IDW-2023), Toki Messe Convention Center, Niigata, Japan from December 6-8, 2023.  2023.12 

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    Event date: 2023.12.06 - 2023.12.08   Language:English   Country:Japan  

  • Design, Synthesis and Metal Ion Sensing Novel Utilizing NIR Sensitive Symmetrical Squarine Dye-Probes

    Sushma Thapa, Shekhar Gupta, Safalmani Pradhan, Shyam S. Pandey

    The 8th International Conference on Advanced Nanomaterials and Nanortechnology (ICANN-2023), India Institute of Technology, Guwahati, Asam, India from November 29-December 1, 2023.  2023.11  Indian Institute of Technology, Guwahati, India

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    Event date: 2023.11.29 - 2023.11.30   Language:English   Country:India  

  • Unveiling the Bioimaging Potentials of Newly Designed NIR Squaraine Dyes and Dye-Peptide Conjugate: From Bioimaging to in-vivo Neutrophil Elastase Sensing.

    Sai Kiran Mavileti, Galyna Bila, Rostyslav Bilyy Jr, Valentyn Utka, Tetsuya Narimatsu, Tamaki Kato, Rostyslav Bilyy, Shyam S. Pandey

    11th International Symposium on Applied Engineering and Sciences (SAES-2023) 20th – 21st Nov 2023, UNIVERSITI PUTRA MALAYSIA, SERDANG SELANGOR, MALAYSIA  2023.11  UPM Malaysia

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    Event date: 2023.11.20 - 2023.11.21   Language:English   Country:Malaysia  

  • Design, Synthesis and Photophysical Characterization of Multifunctional NIR Dyes for Dye-Sensitized Solar Cells

    Kota Mori, Shyam S. Pandey

    11th International Symposium on Applied Engineering and Sciences (SAES-2023) 20th – 21st Nov 2023, UNIVERSITI PUTRA MALAYSIA, SERDANG SELANGOR, MALAYSIA  2023.11  UPM Malaysia

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    Event date: 2023.11.20 - 2023.11.21   Language:English   Country:Malaysia  

  • Long-term in vivo Fluorescence Bioimaging using Functionalized Symmetrical Squaraine Dye

    Priyanka, Sai Kiran Mavileti, Shyam S. Pandey, Tamaki Kato

    11th International Symposium on Applied Engineering and Sciences (SAES-2023) 20th – 21st Nov 2023, UNIVERSITI PUTRA MALAYSIA, SERDANG SELANGOR, MALAYSIA  2023.11  UPM Malaysia

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    Event date: 2023.11.20 - 2023.11.21   Language:English   Country:Malaysia  

  • Transparent Dye-Sensitized Solar Cells Utilizing Judiciously Implemented Visible and NIR Dyes for Power Harvesting Windows

    Pritha Roy, Yuki Kurokawa, Shyam S. Pandey

    11th International Symposium on Applied Engineering and Sciences (SAES-2023) 20th – 21st Nov 2023, UNIVERSITI PUTRA MALAYSIA, SERDANG SELANGOR, MALAYSIA  2023.11  UPM Malaysia

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    Event date: 2023.11.20 - 2023.11.21   Language:English   Country:Malaysia  

  • Combined Theoretical and Experimental Approaches Towards the synthesis of NIR Photon Harvesting Sensitizers for their Application in Dye Sensitized Solar Cells

    Safalmani Pradhan, Shyam S. Pandey

    11th International Symposium on Applied Engineering and Sciences (SAES-2023) 20th – 21st Nov 2023, UNIVERSITI PUTRA MALAYSIA, SERDANG SELANGOR, MALAYSIA  2023.11  UPM Malaysia

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    Event date: 2023.11.20 - 2023.11.21   Language:English   Country:Malaysia  

  • Implications of the molecular structure of sensitizing dyes on the performance of the solid-state dye-sensitized solar cells

    Yuki KUROKAWA, Shyam Sudhir PANDEY

    The 33rd Annual Meeting of Materials Research Society, Yokohama, Japan from November 14-16, 2023  2023.11  Materials Research Society, Japan

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    Event date: 2023.11.14 - 2023.11.16   Language:Japanese   Country:Japan  

  • Synthesis and Characterization of Novel NIR Sensitive Dye- Probes for Metal Ion Sensing

    Sushma THAPA, Shekhar GUPTA, Safalmani PRADHAN, Shaym Sudhir PANDEY

    The 33rd Annual Meeting of Materials Research Society, Yokohama, Japan from November 14-16, 2023  2023.11  Materials Research Society, Japan

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    Event date: 2023.11.14 - 2023.11.16   Language:English   Country:Japan  

  • Design and Synthesis of Multifunctional NIR Squaraine Dyes for Dye-sensitized Solar Cells

    Kota MORI, Shyam Sudhir PANDEY

    The 33rd Annual Meeting of Materials Research Society, Yokohama, Japan from November 14-16, 2023  2023.11  Materials Research Society, Japan

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    Event date: 2023.11.14 - 2023.11.16   Language:Japanese   Country:Japan  

  • TRANSPARENT DYE-SENSITIZED SOLAR CELLS UTILIZING VISIBLE AND NIR DYES FOR ENERGY-HARVESTING WINDOWS Invited

    Shyam S. Pandey

    International Solar Energy Society Solar World Congress (SWC)-2023, New Delhi, India from October 30-November 4, 2023.  2023.10  International Solar Energy Society

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    Event date: 2023.10.30 - 2023.11.04   Language:English   Country:India  

  • ENHANCING THE POTENTIALITY OF DSSCs UTILIZING NIR DYES: TRANSPARENT AND BIFACIAL DSSCs

    Shyam S. Pandey

    The 22nd International Discussion & Conference on Nano Interface Controlled Electronic Devices (IDC-NICE 2023) Oct. 11~13, 2023 I-site Namba, Osaka Metropolitan Univ., Osaka, Japan  2023.10 

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    Event date: 2023.10.11 - 2023.10.13   Language:English   Country:Japan  

  • Implication of Extending the π-Conjugation of Sensitizing Dyes on their Photovoltaic Performance Aiming Towards NIR Photon Harvesting

    〇Safalmani Pradhan, Shyam S. Pandey

    The 84th, Japan Society of Applied Physics Autumn Academic Conference, Kumamoto Castle Hall Kumamoto September 19-23, 2023  2023.09  Japan Applied Physics Society

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    Event date: 2023.09.19 - 2023.09.23   Language:English   Country:Japan  

  • Utilizing the extended-gate OFETs for non-enzymatic glucose sensing based on CuO/MXenes nanocomposite

    Harshita Rai, Kshitij RB Singh, Safalmani Pradhan, Shyam S. Pandey

    The 84th, Japan Society of Applied Physics Autumn Academic Conference, Kumamoto Castle Hall Kumamoto September 19-23, 2023  2023.09  Japan Applied Physics Society

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    Event date: 2023.09.19 - 2023.09.23   Language:English   Country:Japan  

  • Efficient detection of malathion pesticide by electrochemical biosensor utilizing biogenically derived copper oxide nanoparticles

    Kshitij RB Singh, Shyam S. Pandey

    The 84th, Japan Society of Applied Physics Autumn Academic Conference, Kumamoto Castle Hall Kumamoto September 19-23, 2023  2023.09  Japan Applied Physics Society

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    Event date: 2023.09.19 - 2023.09.23   Language:English   Country:Japan  

  • Facile fabrication and performance evaluation of solid-state dye-sensitized solar cells

    Yuki Kurokawa, Shyam S. Pandey

    The 84th, Japan Society of Applied Physics Autumn Academic Conference, Kumamoto Castle Hall Kumamoto September 19-23, 2023.  2023.09  Japan Applied Physics Society

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    Event date: 2023.09.19 - 2023.09.23   Language:English   Country:Japan  

  • Facile, Cost-Effective and Environment-Friendly Approaches Towards Oriented Thin Film Fabrication for Flexible Organic Electronic Devices Invited

    Shyam S. Pandey

    THE 7th INTERNATIONAL SYMPOSIUM ON ADVANCED MATERIALS AND NANOTECHNOLOGY 2023 (iSAMN 2023), UPM, Malaysia, Sept. 12-13, 2023.  2023.09 

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    Event date: 2023.09.12 - 2023.09.13   Language:English   Country:Malaysia  

  • Synthesis and photophysical characterization of near-infrared dyes with electrolyte function for dye-sensitized solar cells

    Kota Mori, Shyam S. Pandey

    Electrochemical Socciety Japan Fall Meeting, 2023, Ito Campus, Kyushu University, Sept. 11-12, 2023, Fukuoka,  2023.09  Japan Electrochemical Society

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    Event date: 2023.09.11 - 2023.09.12   Language:English   Country:Japan  

  • Biogenically synthesized copper oxide nanoparticles for developing sustainable malathion pesticide biosensor

    〇Singh Kshitij RB, Rajeev Das, Pandey Shyam

    Electrochemical Socciety Japan Fall Meeting, 2023, Ito Campus, Kyushu University, Sept. 11-12, 2023, Fukuoka  2023.09  Japan Electrochemical Society

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    Event date: 2023.09.11 - 2023.09.12   Language:English   Country:Japan  

  • Tunable multistate organic resistive switching memory devices utilizing multi-layer-oriented floating films of conjugated polymers

    Shubham Sharma, Shyam S. Pandey

    2023 International Conference on Solid-State Devices and Materials (SSDM-2023), Nagoya Congress Center, Nagoya Japan from Sept. 5-8, 2023  2023.09  Japan Applied Physics Society

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    Event date: 2023.09.05 - 2023.09.08   Language:English   Country:Japan  

  • Fabrication and Characterization of Oriented P3HT/CdS Hybrid Thin Films Prepared by Friction Transfer for Organic Photovoltaics

    Yuki Kurokawa, Safalmani Pradhan, Takeshi Kato, Shuichi Nagamatsu, Shyam. S. Pandey

    The 30th International Workshop on Active Matrix Flat Panel Displays and Devices (AM-FPD-23), Ryukoku University Avanti Kyoto Hall Kyoto, Japan, July 4-7, 2023.  2023.07 

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    Event date: 2023.07.04 - 2023.07.07   Language:English   Country:Japan  

  • Fluorescence Detection of Elastase Enzyme in the Picomole Range by Novel FRET-based Peptide-Squaraine Dye Conjugate

    Sai Kiran Mavileti, Tetsuya Narimatsu, Tamaki Kato, Shyam S. Pandey

    60th Kyushu Branch Chemical Society Meeting, Kitakyushu International Conference Center, Kokura, Kitakyushu, July 1, 2023.,   2023.07  Japan Electrochemical Society

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    Event date: 2023.07.01   Language:English   Country:Japan  

  • Panchromatic photon harvesting in Dye-sensitized solar cells (DSSCs) utilizing a mixture of visible and near-infrared (NIR) dyes

    Safalmani Pradhan, Shyam S. Pandey

    60th Kyushu Branch Chemical Society Meeting, Kitakyushu International Conference Center, Kokura, Kitakyushu, July 1, 2023.,   2023.07  Japan Electrochemical Society

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    Event date: 2023.07.01   Language:English   Country:Japan  

  • Photophysical Investigations of Novel Unsymmetrical Squaraine Dyes and their Interaction with Bovine Serum Albumin

    Shekhar Gupta, Shyam S. Pandey, Tamaki Kato

    60th Kyushu Branch Chemical Society Meeting, Kitakyushu International Conference Center, Kokura, Kitakyushu, July 1, 2023.,   2023.07  Japan Electrochemical Society

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    Event date: 2023.07.01   Language:English   Country:Japan  

  • Effects of Alkyl Chain Length in Symmetrical Squaraine Dyes Flanked with Iodine for Dye-Sensitized Solar Cells.

    Kota Mori, Shyam S Pandey

    60th Kyushu Branch Chemical Society Meeting, Kitakyushu International Conference Center, Kokura, Kitakyushu, July 1, 2023.,   2023.07  Japan Electrochemical Society

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    Event date: 2023.07.01   Language:Japanese   Country:Japan  

  • CuO/MXenes nanocomposite-based extended-gate OFETs for non-enzymatic glucose sensing

    Harshita Rai, Kshitij RB Singh, Safalmani Pradhan, Shyam S. Pandey

    60th Kyushu Branch Chemical Society Meeting, Kitakyushu International Conference Center, Kokura, Kitakyushu, July 1, 2023.,   2023.07  Japan Chemical Society

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    Event date: 2023.07.01   Language:English   Country:Japan  

  • Fluorescence Detection Of Elastase Enzyme in the Picomole range by Novel Peptide-Squaraine Dye Conjugate

    Sai Kiran Mavileti, Galyna Bila, Rostyslav Bilyy Jr, Valentyn Utka, Tetsuya Narimatsu, Tamaki Kato, Rostyslav Bilyy, Shyam S. Pandey

    33rd Anniversary World Congress on Biosensors (BIOSENSOR 2023) from June 5-8, 2023, Busan, South Korea.  2023.06 

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    Event date: 2023.06.05 - 2023.06.08   Language:English   Country:Korea, Democratic People's Republic of  

  • Sustainable approach for bisphenol-A biosensing through immobilization of tyrosinase enzyme on a bioinspired CS@SeO nanocomposites

    Kshitij RB Singh, Pooja Singh, Jay Singh, Shyam S. Pandey

    33rd Anniversary World Congress on Biosensors (BIOSENSOR 2023) from June 5-8, 2023, Busan, South Korea.  2023.06 

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    Event date: 2023.06.05 - 2023.06.08   Language:English   Country:Korea, Democratic People's Republic of  

  • Facile Fabrication of Large Area Oriented Thin Films of Conjugated Polymers for Organic Electronic Devices Invited

    Shyam S. Pandey

    Research discussion on organic electronic devices and materials, Tokyo Institute of Technology Ookayama, Tokyo May 26-27, 2023  2023.05 

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    Event date: 2023.05.26 - 2023.05.27   Language:English   Country:Japan  

  • Facile Fabrication of Large Area Oriented Thin films of Conjugated Polymers and their 2D-Positional Mapping for Anisotropic Organic Electronic Devices

    Shyam S. Pandey, Shubham Sharma, Kumar Vivek Gaurav, Harshita Rai, Shuichi Nagamatsu

    11th International Conference on Materials for Advanced Technologies (ICMAT-2023), Suntec, Singapore from June 26-30, 2023  2023.06  MRS Singapore

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    Event date: 2023.04.26 - 2023.06.30   Language:English   Country:Singapore  

  • Symbiotic study of N-bridged metal complexes as electrocatalysts for hydrogen evolution reaction

    Arunadevi Natarajan, M. Swathika, Kshitij RB Singh, Shyam S. Pandey, Jay Singh

    1st International Conference on Green Hydrogen for Global Decarbonization, PDEU, Gujrat, India, Hybrid Mode, March 17-18, 2023  2023.03  PDEU, Gujrat, India

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    Event date: 2023.03.17 - 2023.03.18   Language:English   Country:India  

  • Investigating the single step coating of combined hole transport and active layer for the thin-film organic solar cells

    Yuki Kurokawa, Takeshi Kato, Shysm S. Pandey

    Kosen Research International Symposium (KRIS-2023) from March 1-2, 2023, Hitotsubashi Hall, Tokyo, Jap  2023.03 

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    Event date: 2023.03.01   Language:Japanese   Country:Japan  

  • Chitosan stabilized CuI nanoparticles immobilized with Tyrosinase for the sensitive and selective determination of dopamine Invited

    Kshitij RB Singh, Shyam S. Pandey

    International Conference on Nano-pharmaceuticals And Neurological Disorders (ICNAND-2023) HYBRID MODE / February 2-4th, 2023  2023.02  IGNTU, Amarkantak, MP, India

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    Event date: 2023.02.02 - 2023.02.04   Language:English   Country:India  

  • Prospects & Challenges with Molecular Orientation Control of Organic Semiconductors towards Low-Cost Organic Electronic Devices Invited

    Shyam S. Pandey

    2nd International Conference on Emerging Electronics and Automation (E2A-2022), Hybrid Mode, NIT Silchar, Assam, India, December 16-18, 2022  2022.12  NIT-Silchar, Assam India

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    Event date: 2022.12.16 - 2022.12.18   Language:English   Country:India  

  • Novel strategy for designing NIR fluorescence ON probe for wide range dynamic pH sensing via acid induced oligomerization

    °Linjun Tang, Shyam S. Pandey

    13th International Conference on Nanomolecular Electronics (ICNME-2022), Tokyo Institute of Technology, Tokyo, Japan, December 12-14, 2022  2022.12  Tokyo Institute of Technology

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    Event date: 2022.12.12 - 2022.12.14   Language:English   Country:Japan  

  • Bioinspired magnetic iron oxide nanoparticles from Argyreia nervosa leaf extract for efficient electrochemical determination of carbofuran pesticide: a sustainable approach

    °Kshitij RB Singh, Shyam S Pandey

    13th International Conference on Nanomolecular Electronics (ICNME-2022), Tokyo Institute of Technology, Tokyo, Japan, December 12-14, 2022  2022.12  Tokyo Institute of Technology

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    Event date: 2022.12.12 - 2022.12.14   Language:English   Country:Japan  

  • Design & Synthesis of FITC-Flanked Novel Squaraine Dye and its Interaction with Bovine Serum Albumin as a Model Protein

    °Shekhar Gupta, Yuki Yamawaki, Safalmani Pradhan, Shyam S. Pandey, Tamaki Kato

    13th International Conference on Nanomolecular Electronics (ICNME-2022), Tokyo Institute of Technology, Tokyo, Japan, December 12-14, 2022  2022.12  Tokyo Institute of Technology

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    Event date: 2022.12.12 - 2022.12.14   Language:English   Country:Japan  

  • Fluorescence Detection of Elastase Enzyme by Novel Peptide Squaraine Dye Conjugate

    °Sai Kiran Mavileti, Tetsuya Narimatsu, Shekhar Gupta, Tamaki Kato, Shyam S. Pandey

    13th International Conference on Nanomolecular Electronics (ICNME-2022), Tokyo Institute of Technology, Tokyo, Japan, December 12-14, 2022  2022.12  Tokyo Institute of Technology

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    Event date: 2022.12.12 - 2022.12.14   Language:English   Country:Japan  

  • Clarifying the Role of Viscosity in Controlling the Extent and Direction of Orientation in Donor-Acceptor type Conjugated Polymers

    °Shubham Sharma, Shyam S. Pandey

    13th International Conference on Nanomolecular Electronics (ICNME-2022), Tokyo Institute of Technology, Tokyo, Japan, December 12-14, 2022  2022.12  Tokyo Institute of Technology

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    Event date: 2022.12.12 - 2022.12.14   Language:English   Country:Japan  

  • Role of Solvent Blending in the Preparation of Semiconducting Polymer Films Using Unidirectional Floating Film Transfer Method

    °Jumpei Toyoda, Rishabh Vashist, Manish Pandey, Yongyoon Cho, Hiroaki, Benten, Masakazu Nakamura, Shyam S. Pandey

    13th International Conference on Nanomolecular Electronics (ICNME-2022), Tokyo Institute of Technology, Tokyo, Japan, December 12-14, 2022  2022.12  Tokyo Institute of Technology

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    Event date: 2022.12.12 - 2022.12.14   Language:English   Country:Japan  

  • Design and Synthesis of Novel NIR Sensitive Squaraine dyes altering Squaric Acid Core for Dye-Sensitized Solar Cells

    °Safalmani Pradhan, Yuki Kurokawa, Shyam S.Pandey

    13th International Conference on Nanomolecular Electronics (ICNME-2022), Tokyo Institute of Technology, Tokyo, Japan, December 12-14, 2022  2022.12  Tokyo Institute of Technology

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    Event date: 2022.12.12 - 2022.12.14   Language:English   Country:Japan  

  • Facile Fabrication and Characterization of Solid-State Dye-Sensitized Solar Cells Utilizing a Combination of Visible and NIR Dyes

    Visible and NIR Dyes °Yuki Kurokawa, Safalmani Pradhan, Shyam S. Pandey

    13th International Conference on Nanomolecular Electronics (ICNME-2022), Tokyo Institute of Technology, Tokyo, Japan, December 12-14, 2022  2022.12  Tokyo Institute of Technology

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    Event date: 2022.12.12 - 2022.12.14   Language:English   Country:Japan  

  • Fabrication and Characterization of Organic Field-Effect Transistors utilizing Oriented Thin films Novel DA Type Conjugated Copolymers: Implications of F Substitution

    °Moulika Desu, Shyam S. Pandey, Guan-Lin Chen, Leeyih Wang

    13th International Conference on Nanomolecular Electronics (ICNME-2022), Tokyo Institute of Technology, Tokyo, Japan, December 12-14, 2022  2022.12  Tokyo Institute of Technology

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    Event date: 2022.12.12 - 2022.12.14   Language:English   Country:Japan  

  • Design, Synthesis and Photophysical Characterization of Multifunctional NIR Dyes for Dye-Sensitized Solar Cells

    °Kota Mori, Yuki Kurokawa, Shyam S. Pandey

    13th International Conference on Nanomolecular Electronics (ICNME-2022), Tokyo Institute of Technology, Tokyo, Japan, December 12-14, 2022  2022.12  Tokyo Institute of Technology

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    Event date: 2022.12.12 - 2022.12.14   Language:English   Country:Japan  

  • Fabrication and Characterization of Bifacial Dye-Sensitized Solar Cells Utilizing Indolene Dye with Iodine and Cobalt-based Redox Electrolytes

    °Suraya Shaban, Shyam S. Pandey

    13th International Conference on Nanomolecular Electronics (ICNME-2022), Tokyo Institute of Technology, Tokyo, Japan, December 12-14, 2022  2022.12  Tokyo Institute of Technology

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    Event date: 2022.12.12 - 2022.12.14   Language:English   Country:Japan  

  • Controlling the TiO2-Dye Nanomolecular Interactions for Improving the Photoconversion in Transparent Dye-sensitized Solar Cell

    °Pritha Roy, Yuki Kurokawa, Shyam S. Pandey

    13th International Conference on Nanomolecular Electronics (ICNME-2022), Tokyo Institute of Technology, Tokyo, Japan, December 12-14, 2022  2022.12  Tokyo Institute of Technology

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    Event date: 2022.12.12 - 2022.12.14   Language:English   Country:Japan  

  • Influence of Thin Film Crystallinity and Molecular Orientation on Charge Carrier Transport in Organic Field Effect Transistors

    °Kumar Vivek Gaurav, Harshita Rai, Shuichi Nagamatsu, Shyam S. Pandey

    13th International Conference on Nanomolecular Electronics (ICNME-2022), Tokyo Institute of Technology, Tokyo, Japan, December 12-14, 2022  2022.12  Tokyo Institute of Technology

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    Event date: 2022.12.12 - 2022.12.14   Language:English   Country:Japan  

  • Effects of Alkyl Chain Length in Symmetrical Squaraine Dyes Flanked with Imidazole for Dye-Sensitized Solar Cells

    Kota Mori, Yuki Kurokawa, Shyam S Pandey

    10th International Conference on Applied Engineering and Sciences (SAES-2022), Virtual Online, Kyushu Institute of Technology, December 12-14. 2022  2022.12  Kyushu Institute of Technology and UPM-Malaysia

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    Event date: 2022.12.12 - 2022.12.14   Language:English   Country:Japan  

  • Parametric Optimization of Thin films of Conjugated Polymer P3HT Fabricated by Dip Coating

    Kumar Vivek Gaurav, Harshita Rai, Shyam S Pandey

    10th International Conference on Applied Engineering and Sciences (SAES-2022), Virtual Online, Kyushu Institute of Technology, December 12-14. 2022  2022.12  Kyushu Institute of Technology and UPM-Malaysia

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    Event date: 2022.12.12 - 2022.12.14   Language:English   Country:Japan  

  • Simple Fabrication and Characterization of Solid-State Dye-Sensitized Solar Cells Using Visible and NIR Dyes as Sensitizer

    Yuki Kurokawa, Safalmani Pradhan, Shyam S. Pandey

    10th International Conference on Applied Engineering and Sciences (SAES-2022), Virtual Online, Kyushu Institute of Technology, December 12-14. 2022  2022.12  Kyushu Institute of Technology and UPM-Malaysia

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    Event date: 2022.12.12 - 2022.12.14   Language:English   Country:Japan  

  • Computational Molecular Design of NIR Dyes having Higher Open-Circuit Voltage for Dye Sensitized Solar Cells

    Safalmani Pradhan, Shyam S. Pandey

    10th International Conference on Applied Engineering and Sciences (SAES-2022), Virtual Online, Kyushu Institute of Technology, December 12-14. 2022  2022.12  Kyushu Institute of Technology and UPM-Malaysia

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    Event date: 2022.12.12 - 2022.12.14   Language:English   Country:Japan  

  • Synthesis, Photophysical Characterization and Binding Interactions of Novel NIR Squaraine Dyes with BSA as Model Protein

    Sai Kiran Mavileti, Shyam S. Pandey

    10th International Conference on Applied Engineering and Sciences (SAES-2022), Virtual Online, Kyushu Institute of Technology, December 12-14. 2022  2022.12  Kyushu Institute of Technology and UPM-Malaysia

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    Event date: 2022.12.12 - 2022.12.14   Language:English   Country:Japan  

  • Efficient Electrochemical Determination of Carbofuran Pesticide Through Sustainable Biosensing Approach

    Kshitij RB Singh, Shyam S. Pandey

    10th International Conference on Applied Engineering and Sciences (SAES-2022), Virtual Online, Kyushu Institute of Technology, December 12-14. 2022  2022.12  Kyushu Institute of Technology and UPM-Malaysia

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    Event date: 2022.12.12 - 2022.12.14   Language:English   Country:Japan  

  • Influence of Thin Film Crystallinity and Molecular Orientation on Charge Carrier Transport in Organic Field Effect Transistors

    °Kumar Vivek Gaurav, Harshita Rai, Shuichi Nagamatsu, Shyam S. Pandey

    10th International Conference on Applied Engineering and Sciences (SAES-2022), Virtual Online, Kyushu Institute of Technology, December 12-14. 2022  2022.12  Kyushu Institute of Technology and UPM-Malaysia

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    Event date: 2022.12.12 - 2022.12.14   Language:English   Country:Japan  

  • D-205 Dye-Adsorbed TiO2-based Photoanodes for Bifacial Dye-Sensitized Solar Cells

    Suraya Shaban, Shyam S. Pandey

    10th International Conference on Applied Engineering and Sciences (SAES-2022), Virtual Online, Kyushu Institute of Technology, December 12-14. 2022  2022.12  Kyushu Institute of Technology and UPM-Malaysia

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    Event date: 2022.12.12 - 2022.12.14   Language:English   Country:Japan  

  • Controlling the dye adsorption on TiO2 for bifacial dye-sensitized solar cells: Implication of bilayer vs. mixed dyes adsorption

    Suraya Shaban, Ajendra Kumar Vats, Shyam Pandey

    33rd International Photovoltaic Science and Engineering Conference (PVSEC-33), Nagoya, Japan, November 13-17, 2022  2022.11  Japan Photovoltaic Society

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    Event date: 2022.11.13 - 2022.11.17   Language:English   Country:Japan  

  • FACILE FABRICATION AND CHARACTERIZATION OF SOLID-STATE DYE-SENSITIZED SOLAR CELLS UTILIZING IODINE-BASED REDOX ELECTROLYTE

    Yuki Kurokawa, Shyam S. Pandey

    33rd International Photovoltaic Science and Engineering Conference (PVSEC-33), Nagoya, Japan, November 13-17, 2022  2022.11  Japan Photovoltaic Society

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    Event date: 2022.11.13 - 2022.11.17   Language:English   Country:Japan  

  • Electronic Versus Ionic Electroactive Polymers (EAPs) Strain Sensors for Wearable Electronics: A Comparative Study

    Nitin Kumar Singh, Kazuto Takashima, Shyam S. Pandey

    8th International Conference on Sensors Engineering and Electronics Instrumentation Advances (SEIA' 2022), 21-23 September 2022, Corfu Holiday Palace, Corfu, Greece, Hybrid Mode  2022.09  International Frequency Sensor Association (IFSA)

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    Event date: 2022.09.21 - 2022.09.23   Language:English   Country:Greece  

  • Design and photophysical characterization of squaraine dyes with electron-withdrawing groups in squaric acid core for dye-sensitized solar cells

    Safalmani Pradhan, Kurokawa Yuki, Suraya Shaban, Shyam S. Pandey

    The 83rd Autumn Meeting of Japan Applied Physics Society, Tohoku University, Kawauchi Campus, Japan, September 20-23, 2022  2022.09  Japan Applied Physics Society

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    Event date: 2022.09.20 - 2022.09.23   Language:English   Country:Japan  

  • Investing the vertical distribution of orientation in the thin films of NR-P3HT prepared by the floating film transfer method

    Harshita Rai, Kumar Vivek Gaurav, Shubham Sharma, Shuichi Nagamatsu, Shyam S, Pandey

    The 83rd Autumn Meeting of Japan Applied Physics Society, Tohoku University, Kawauchi Campus, Japan, September 20-23, 2022  2022.09  Japan Applied Physics Society

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    Event date: 2022.09.20 - 2022.09.23   Language:English   Country:Japan  

  • Investigating the role of hole doping in a p-type semiconducting polymer towards enhancing the field-effect mobility and photosensitivity

    Shubham Sharma, Subhajeet Jana, Rajiv Prakash, Shyam S. Pandey

    The 83rd Autumn Meeting of Japan Applied Physics Society, Tohoku University, Kawauchi Campus, Japan, September 20-23, 2022  2022.09  Japan Applied Physics Society

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    Event date: 2022.09.20 - 2022.09.23   Language:English   Country:Japan  

  • Enhancement in energy density of electroactive polymerbased wearable devices using silicone rubber and carbon nanotube based composite dielectric film

    Nitin Kumar Singh, Kazuto Takashima, Shyam S. Pandey

    The 83rd Autumn Meeting of Japan Applied Physics Society, Tohoku University, Kawauchi Campus, Japan, September 20-23, 2022  2022.09  Japan Applied Physics Society

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    Event date: 2022.09.20 - 2022.09.23   Language:English   Country:Japan  

  • Fabrication of P3HT nanofibril thin film by floating thin film transfer method

    Yuuya Tokuchi, Mitsuki Kunihiro, Shyam Pandey, Shuichi Nagamatsu

    The 83rd Autumn Meeting of Japan Applied Physics Society, Tohoku University, Kawauchi Campus, Japan, September 20-23, 2022  2022.09  Japan Applied Physics Society

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    Event date: 2022.09.20 - 2022.09.23   Language:Japanese   Country:Japan  

  • Fabrication of stacked ambipolar polymer transistors by floating thin film transfer method

    Kazuki Koga, Shyam Pandey, Shuichi Nagamatsu

    The 83rd Autumn Meeting of Japan Applied Physics Society, Tohoku University, Kawauchi Campus, Japan, September 20-23, 2022  2022.09  Japan Applied Physics Society

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    Event date: 2022.09.20 - 2022.09.23   Language:Japanese   Country:Japan  

  • Optimization of electropolymerized conducting polymers as counter electrode for dye sensitized solar cells

    Yuki Kurokawa, Takehito Kato, Pandey Shyam S

    The 83rd Autumn Meeting of Japan Applied Physics Society, Tohoku University, Kawauchi Campus, Japan, September 20-23, 2022  2022.09  Japan Applied Physics Society

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    Event date: 2022.09.20 - 2022.09.23   Language:Japanese   Country:Japan  

  • Tailoring the Functional Materials and & Device Architecture for Low-Cost Solar Energy Harvesting !

    Shyam S. Pandey

    3rd INTERNATIONAL CONFERENCE on Recent Advances in Materials, Manufacturing and Thermal Engineering (RAMMTE-2022) 8th& 9th July 2022  2022.09  Delhi Technological University

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    Event date: 2022.09.08 - 2022.09.09   Language:English   Country:India  

  • Fabrication and Characterization of Oriented Thin Films of DPP-based Conjugated Copolymer Prepared by Friction Transfer Method

    Yuki Kurokawa, Ajendra K. Vats, Shuichi Nagamatsu, Shyam S. Pandey

    THE TWENTY-NINTH INTERNATIONAL WORKSHOP ON ACTIVE-MATRIX FLATPANEL DISPLAYS AND DEVICES -TFT TECHNOLOGIES AND FPD MATERIALS-AM-FPD22, Ryukoku University Avanti Kyoto Hall, Kyoto, Japan, July 5-8, 2022  2022.07  International Society of Functional Thin Film Materials & Devices

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    Event date: 2022.07.05 - 2022.07.08   Language:English   Country:Japan  

  • Interplay of Viscosities in Controlling The Orientation of Conjugated Polymer Thin Films Fabricated by Floating Film Transfer Method

    Shubham Sharma, Ajendra K. Vats, Shuichi Nagamatsu, Shyam S. Pandey

    THE TWENTY-NINTH INTERNATIONAL WORKSHOP ON ACTIVE-MATRIX FLATPANEL DISPLAYS AND DEVICES -TFT TECHNOLOGIES AND FPD MATERIALS-AM-FPD22, Ryukoku University Avanti Kyoto Hall, Kyoto, Japan, July 5-8, 2022  2022.07  International Society of Functional Thin Film Materials & Devices

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    Event date: 2022.07.05 - 2022.07.08   Language:English   Country:Japan  

  • Synthesis, Photophysical Characterization and Binding Interactions of Novel NIR Squaraine Dye with BSA as Model Protein

    Sai Kiran Mavileti, Linjun Tang, Shyam S. Pandey

    59th Kyushu Branch Chemical Society Meeting, Kitakyushu International Conference Center, Kokura Kitakyushu  2022.07  Japan Chemical Society

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    Event date: 2022.07.02   Language:English   Country:Japan  

  • Investigation of Conducting Polymers-based Counter Electrodes for Low-cost Dye-sensitized Solar Cells

    Yuki Kurokawa, Suhaidi Shafie, Takehito Kato, Shyam S. Pandey

    59th Kyushu Branch Chemical Society Meeting, Kitakyushu International Conference Center, Kokura Kitakyushu  2022.07  Japan Chemical Society

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    Event date: 2022.07.02   Language:English   Country:Japan  

  • A DPP Framework-based Novel Organic Conjugated Polymer for High Performance OFETs Using Dielectric Surface Modifications

    Moulika Desu, Shubham Sharma, Shuichi Nagamatsu, Kuang-Hao Cheng, Yu-Han Wang, Jyh-Chien Chen, Shyam S. Pandey

    59th Kyushu Branch Chemical Society Meeting, Kitakyushu International Conference Center, Kokura Kitakyushu  2022.07  Japan Chemical Society

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    Event date: 2022.07.02   Language:English   Country:Japan  

  • Controlling the magnitude and direction of molecular alignment in the thin films of conjugated polymers using Floating Film transfer method

    Shubham Sharma, Shuichi Nagamatsu, Shyam S. Pande

    59th Kyushu Branch Chemical Society Meeting, Kitakyushu International Conference Center, Kokura Kitakyushu  2022.07  Japan Chemical Society

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    Event date: 2022.07.02   Language:English   Country:Japan  

  • Probing the orientation distribution in aligned thin films using dual gate organic field-effect transistors

    Harshita Rai, Shubham Sharma, Shuichi Nagamatsu, Shyam S. Pandey

    59th Kyushu Branch Chemical Society Meeting, Kitakyushu International Conference Center, Kokura Kitakyushu  2022.07  Japan Chemical Society

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    Event date: 2022.07.02   Language:English   Country:Japan  

  • Electronic Versus Ionic Electroactive Polymers (EAPs) Strain Sensors for Wearable Electronics: A Comparative Study

    Nitin Kumar Singh, Kazuto Takashima, Shyam Sudhir Pandey

    9th International Symposium on Sensor Science The Centre for Advanced Materials and Technologies, Warsaw University of Technology Warsaw, Poland 20 – 22 June 2022  2022.06  Warsaw University of Technology Warsaw, Poland

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    Event date: 2022.06.20 - 2022.06.22   Language:English   Country:Poland  

  • Nano-Interface Control @t Molecule & Materials for Enhancing the Performance of Cost-Effective Dye-Sensitized Solar Cells Invited

    Shyam S. Pandey

    Molecules to material for sustainable development M2M-2022, DDU Gorakhpur University, March 25-26, 2022, Online  2022.03  DDU Gorakhpur University, India

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    Event date: 2022.03.25 - 2022.03.26   Language:English   Country:India  

  • Investigation of Adsorption Behavior of Multiple Dyes on TiO2 for Bifacial Dye-Sensitized Solar Cells

    ○Suraya Shaban, Linjun Tang, Shyam S. Pandey

    The 102 Annual Chemical Society Japan Annual Meeting (2022), March 23-26, Online Virtual Meeting  2022.03  Japan Chemical Society

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    Event date: 2022.03.23 - 2022.03.26   Language:English   Country:Japan  

    Other Link: https://confit.atlas.jp/guide/event/csj102nd/top?lang=en

  • Fabrication of large area oriented thin films of novel organic conjugated polymer p(BZC-DPP) by the ribbon-shaped FTM for Organic Electronic Devices

    Moulika Desu, Shubham Sharma, Shuichi Nagamatsu, Kuang-Hao Cheng, Yu-Han Wang, Jyh-Chien Chen, Shyam S. Pandey

    The 69th Japan Applied Physics Spring Meeting-2022, Aoyama Gakuin University, Sagamihara Campus, Tokyo, March 22-26, 2022.  2022.03 

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    Event date: 2022.03.22 - 2022.03.26   Language:English   Country:Japan  

    Other Link: https://confit.atlas.jp/guide/event/jsap2022s/top

  • Fabrication and Characterization of Solid-State Dye-Sensitized Solar Cells Prepared by Natural Drying of Redox Electrolyte

    Yuki Kurokawa, Pandey Shyam S.

    The 69th Japan Applied Physics Spring Meeting-2022, Aoyama Gakuin University, Sagamihara Campus, Tokyo, March 22-26, 2022.  2022.03 

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    Event date: 2022.03.22 - 2022.03.26   Language:Japanese   Country:Japan  

    Other Link: https://confit.atlas.jp/guide/event/jsap2022s/top

  • istable Resistive Switches Fabricated by Multilayered Coating of Semiconducting Conjugated Polymers

    Shubham Sharma○, Nikita Kumari, Shuichi Nagamatsu, Shyam S. Pandey

    The 69th Japan Applied Physics Spring Meeting-2022, Aoyama Gakuin University, Sagamihara Campus, Tokyo, March 22-26, 2022.  2022.03 

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    Event date: 2022.03.22 - 2022.03.26   Language:English   Country:Japan  

    Other Link: https://confit.atlas.jp/guide/event/jsap2022s/top

  • Facile and Cost-Effective Solar Energy Harvesting by the Next Generation Dye-Sensitized Solar Cells Invited

    Shyam S. Pandey

    International Seminar On Advance Research in Molecular & Material Science - 2022 (ARM2S - 2022) March 01 – 02, 2022 Sikkim Manipal Institute of Technology, India  2022.03  SMIT India

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    Event date: 2022.03.01 - 2022.03.02   Language:English   Country:India  

  • Playing with Orientation Control in Conjugated Polymers by Environmentally Benign Techniques for Organic Electronic Devices Invited

    Shyam S. Pandey

    32nd Annual General Meeting of MRS-India and 3rd Indian Materials Conclave, Indian Institute of Technology, Madras India, December 20-23, 202  2021.12  IIT Madras, India

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    Event date: 2021.12.20 - 2021.12.23   Language:English   Country:India  

  • Design and Development of NIR Dyes for Immense Solar Energy Harvesting based on Combined Theoretical and Experimental Approaches Invited

    Shyam S. Pandey

    7th International Conference on Nanomaterials and Nanotechnology (ICANN2021), Indian Institute of Technology, Guwahati, Assam India, December 14-17, 2021  2021.12  Indian Institute of Technology, Guwahati, Assam, India

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    Event date: 2021.12.14 - 2021.12.17   Language:English   Country:India  

    Other Link: https://event.iitg.ac.in/icann2021/

  • Investigation on PEDOT-based lowcost counter electrodes for dye sensitized solar cells

    Yuki KUROKAWA, Suhaidi SHAFIE, Takehito KATO, Shyam Sudhir PANDEY

    31st Annual Meeting of MRS-J, Pacific Yokohama, Japan, December 13-15, 2021  2021.12  MRS-JAPAN

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    Event date: 2021.12.13 - 2021.12.15   Language:Japanese   Country:Japan  

    Other Link: https://www.mrs-j.org/meeting2021/jp/

  • Strong Solvatochromism in Novel Double- Squaraine Dye for Sensing Application

    Linjun TANG, Shyam S. PANDEY

    31st Annual Meeting of MRS-J, Pacific Yokohama, Japan, December 13-15, 2021  2021.12  MRS-JAPAN

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    Event date: 2021.12.13 - 2021.12.15   Language:English   Country:Japan  

    Other Link: https://www.mrs-j.org/meeting2021/jp/

  • Photophysical Characterizations of Transparent Dye-Sensitized Solar Cells utilizing Dye-cocktails of Visible and NIR Sensitive Dye

    Pritha ROY, Shyam S. PANDEY

    31st Annual Meeting of MRS-J, Pacific Yokohama, Japan, December 13-15, 2021  2021.12  MRS-JAPAN

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    Event date: 2021.12.13 - 2021.12.15   Language:English   Country:Japan  

    Other Link: https://www.mrs-j.org/meeting2021/jp/

  • Fabrication and Characterization of Bifacial Dye- Sensitized Solar Cells using Dye-Bilayer

    Suraya SHABAN, Linjun TANG, Shyam S. PANDE

    31st Annual Meeting of MRS-J, Pacific Yokohama, Japan, December 13-15, 2021  2021.12  MRS-JAPAN

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    Event date: 2021.12.13 - 2021.12.15   Language:English   Country:Japan  

    Other Link: https://www.mrs-j.org/meeting2021/jp/

  • Fabrication and Characterization of Multilayered Oriented Thin Films of Conjugated Polymers by Floating Film Transfer Method

    Shubham SHARMA, Shyam S. PANDEY

    31st Annual Meeting of MRS-J, Pacific Yokohama, Japan, December 13-15, 2021  2021.12  MRS-JAPAN

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    Event date: 2021.12.13 - 2021.12.15   Language:English   Country:Japan  

    CiNii Article

    Other Link: https://www.mrs-j.org/meeting2021/jp/

  • Research and Development of Organic Photosensitive Transistors Utilizing Well Oriented Polymer Chains Invited

    Vipul SINGH, Nidhi YADAV, Shyam S PANDEY

    31st Annual Meeting of MRS-J, Pacific Yokohama, Japan, December 13-15, 2021  2021.12  MRS-JAPAN

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    Event date: 2021.12.13 - 2021.12.15   Language:English   Country:Japan  

    Other Link: https://www.mrs-j.org/meeting2021/jp/

  • Poly(3-hexylthiophene) Film Preparation by Floating Film Transfer Method using Self-seeded Growth Nanofibril Gelled Solution Invited

    Shuichi Nagamatsu and SHYAM S. PANDEY

    India-Japan Workshop on Biomolecular Electronics and Organic Nanotechnology for Environment Preservation (IJWBME 2020) Venture Hall, Venture Business Laboratory, Nagoya University, Nagoya, Japan, and online (Zoom), Dec 9-10, 2021  2021.12  JSPS-DST Bilateral Program-2020

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    Event date: 2021.12.09 - 2021.12.10   Language:English   Country:Japan  

  • Facile Approaches for Molecular Orientation towards Control of Device Performance in Organic Electronic Devices; Invited

    Shyam S. Pandey, Shuichi Nagamatsu

    India-Japan Workshop on Biomolecular Electronics and Organic Nanotechnology for Environment Preservation (IJWBME 2020) Venture Hall, Venture Business Laboratory, Nagoya University, Nagoya, Japan, and online (Zoom), Dec 9-10, 2021  2021.12  JSPS-DST Bilateral Program-2020

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    Event date: 2021.12.09 - 2021.12.10   Language:English   Country:Japan  

  • Investigation on Molecular Orientation of BZC-DPP based Organic Conjugated Polymer for Organic Electronic Device

    Moulika Desu, Shubham Sharma, Kuang-Hao Cheng, Yu-Han Wang, Jyh-Chien Chen, Shyam S. Pandey

    9th International Symposium on Applied Engineering and Sciences (SAES2021) 5th–8th December 2021 | MALAYSIA UNIVERSITI PUTRA MALAYSIA, SERDANG, SELANGOR,  2021.12  University Putra Malaysia

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    Event date: 2021.12.05 - 2021.12.08   Language:English   Country:Malaysia  

    Other Link: https://saes2021.upm.edu.my/

  • Development of Novel NIR Fluorescent Probe for the Sensing Applications under High Acidic Media

    Linjun Tang, Shyam S. Pandey

    9th International Symposium on Applied Engineering and Sciences (SAES2021) 5th–8th December 2021 | MALAYSIA UNIVERSITI PUTRA MALAYSIA, SERDANG, SELANGOR,  2021.12  University Putra Malaysia

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    Event date: 2021.12.05 - 2021.12.08   Language:English   Country:Malaysia  

    Other Link: https://saes2021.upm.edu.my/

  • Facile Fabrication and Characterization of Solid-State Dye-Sensitized Solar Cells Utilizing Iodine-Based Redox Electrolyte

    Yuki Kurokawa, Shyam S. Pandey

    9th International Symposium on Applied Engineering and Sciences (SAES2021) 5th–8th December 2021 | MALAYSIA UNIVERSITI PUTRA MALAYSIA, SERDANG, SELANGOR,  2021.12  University Putra Malaysia

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    Event date: 2021.12.05 - 2021.12.08   Language:English   Country:Malaysia  

    Other Link: https://saes2021.upm.edu.my/

  • Influence of Mixed Dye and Bilayer Dye Adsorption on The Performance of Bifacial Dye-Sensitized Solar Cells

    Suraya Shaban, Shyam S. Pandey

    9th International Symposium on Applied Engineering and Sciences (SAES2021), University Putra Malaysia, December 5-8, 2021, Virtual Online Conference  2021.12  University Putra Malaysia

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    Event date: 2021.12.05 - 2021.12.08   Language:English   Country:Malaysia  

    Other Link: https://saes2021.upm.edu.my/

  • Investigation on Electronic Properties of DPP TTT based Organic Field Effect Transistor

    Shubham Sharma, Ajendra Vats, Shyam S. Pandey

    9th International Symposium on Applied Engineering and Sciences (SAES2021) 5th–8th December 2021 | MALAYSIA UNIVERSITI PUTRA MALAYSIA, SERDANG, SELANGOR,  2021.12  University Putra Malaysia

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    Event date: 2021.12.05 - 2021.12.08   Language:English   Country:Malaysia  

    Other Link: https://saes2021.upm.edu.my/

  • Sensing and Actuation: Moving from Soft & Wet in Liquid to Soft, Flexible & Dry in Solid-State Invited

    Shyam S. Pandey

    Active Materials and Soft Mechatronics 2021 (AMSM2021), Toyohashi University, Japan, November 10-12, 2021, Online Conference  2021.11 

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    Event date: 2021.11.10 - 2021.11.12   Language:English   Country:Japan  

    Other Link: https://www.life.kyutech.ac.jp/~amsm2021/invited/

  • CONTROL OF MOLECULAR ORIENTATIONS BY ENVIRONMENTALLY BENIGN TECHNIQUES AND THEIR VISUALIZATION FOR ORGANIC ELECTRONIC DEVICES Invited

    Shyam S. Pandey

    20th International Discussion and Conference on Nanointerface Controlled Electronic Devices (IDC-NICE 2021), South Korea, Online Meeting, Oct 6-7, 202  2021.10 

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    Event date: 2021.10.06 - 2021.10.07   Language:English   Country:Korea, Democratic People's Republic of  

  • Fabrication of Large Area Oriented Thin Films by Floating Film Transfer and their 2D Profiling for Organic Electronic Devices Invited

    Shyam S. Pandey

    The 11th International Conference on Flexible and Printed Electronics (ICFPE-2021), Online Meeting, Sep 27-29, 2021  2021.09 

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    Event date: 2021.09.27 - 2021.09.29   Language:English   Country:Japan  

    Other Link: https://www.eng.niigata-u.ac.jp/~icfpe/

  • Optimization of PEDOT counter electrodes for dye sensitized solar cells

    Yuki Kurokawa, Suhaidi Shaffie, Takehito Kato, Pandey Shyam S

    The 82nd Japan Society Autumn Meeting-2021, Sept. 10-13, 2021, Online Virtual Meeting   2021.09 

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    Event date: 2021.09.10 - 2021.09.13   Language:Japanese  

  • Enhancement of DPPT-TT Orientation in Unidirectional Floating Films Transfer with Solvent Additives

    Heriyanto Syafutra, Manish Pandey, Yuya Sugita, Hiroaki Benten, Shyam S. Pandey, Masakazu Nakamura

    The 82nd Japan Society Autumn Meeting-2021, Sept. 10-13, 2021, Online Virtual Meeting   2021.09 

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    Event date: 2021.09.10 - 2021.09.13   Language:Japanese  

  • Fabrication and Characterization of Transparent Dye Sensitized Solar Cells utilizing Dye-Cocktail of Visible and NIR Dyes

    Pritha Roy, Ajendra Kumar Vats, Linjun Tang, Shyam S. Pandey;

    The 82nd Japan Society Autumn Meeting-2021, Sept. 10-13, 2021, Online Virtual Meeting   2021.09 

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    Event date: 2021.09.10 - 2021.09.13   Language:English  

  • Investigation of Efficiency Enhancement in Organ ic Inorganic Thin Film Solar Cells based on Titanium (IV) chloride

    Takehito Kato, Yuki Kurokawa, Naoharu Hatsugai, Mitsuzi Ochiai, Zyunichi Asao, Pandey Shyam

    The 82nd Japan Society Autumn Meeting-2021, Sept. 10-13, 2021, Online Virtual Meeting   2021.09 

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    Event date: 2021.09.10 - 2021.09.13   Language:Japanese  

  • Investigation of Orientation in the Thin Films of Conjugated Polymer and NIR Dye Blends Fabricated by Friction Transfer Method

    Yuki Kurokawa*, Shuichi Nagamatsu and Shyam S. Pandey,

    THE 28th INTERNATIONAL WORKSHOP ON ACTIVE-MATRIX FLATPANEL DISPLAYS AND DEVICES -TFT TECHNOLOGIES AND FPD MATERIALS [AM-FPD21].  Japan Society of Applied Physics and IEEE

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    Event date: 2021.06.29 - 2021.07.02   Language:English  

  • Assisting Polymer Orientation Using Polymer Blend in FTM

    Heriyanto Syafutra, Manish Pandey, Nikita Kumari, Shyam S. Pandey, Hiroaki Benten, Masakazu Nakamura

    The 8th International Symposium on Organic and Inorganic Electronic Materials and its related Nanotechnologies (EM-NANO-2021), June 1-3, 2021, Online Virtual Conference  Japan Society of Applied Physics

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    Event date: 2021.06.01 - 2021.06.03   Language:English  

    CiNii Article

  • Characteristics of Large-Area Floating Films of Oriented Polymeric Semiconductors for Flexible Electronics

    Manish Pandey, Heriyanto Syafutra, Nikita Kumari, Shyam S. Pandey, Masakazu Nakamura

    The 8th International Symposium on Organic and Inorganic Electronic Materials and its related Nanotechnologies (EM-NANO-2021), June 1-3, 2021, Online Virtual Conference  Japan Society of Applied Physics

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    Event date: 2021.06.01 - 2021.06.03   Language:English  

  • Computational Molecular Design of NIR Dyes with Varying Anchoring Groups Aiming for Improved Efficiency & Stability

    Shyam S. Pandey, Ajendra Kumar Vats, Shuzi Hayase

    The 8th International Symposium on Organic and Inorganic Electronic Materials and its related Nanotechnologies (EM-NANO-2021), June 1-3, 2021, Online Virtual Conference  Japan Society of Applied Physics

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    Event date: 2021.06.01 - 2021.06.03   Language:English  

  • Bifacial Dye-Sensitized Solar Cells Utilizing NIR Sensitive Novel Unsymmetrical Squaraine Dye

    Suraya Shaban, Pritha Roy, Ajendra Kumar Vats, Shyam S. Pandey

    The 8th International Symposium on Organic and Inorganic Electronic Materials and its related Nanotechnologies (EM-NANO-2021), June 1-3, 2021, Online Virtual Conference  Japan Society of Applied Physics

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    Event date: 2021.06.01 - 2021.06.03   Language:English  

  • Optimization of Pt-free counter electrodes for dye-sensitized solar cells

    Yuki Kurokawa, Ajendra Kumar Vats, Takehito Kato, Shyam S. Pandey

    The 8th International Symposium on Organic and Inorganic Electronic Materials and its related Nanotechnologies (EM-NANO-2021), June 1-3, 2021, Online Virtual Conference  Japan Society of Applied Physics

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    Event date: 2021.06.01 - 2021.06.03   Language:English  

  • Fatigue life prediction of electroactive polymer strain sensor

    Nitin Kumar Singh, Kazuto Takashima, Shyam Sudhir Pandey

    SPIE Smart Structure + Non-destructive evaluation-2021  SPIE, USA

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    Event date: 2021.03.22 - 2021.03.27   Language:English  

    Electroactive polymers strain sensors bear a great potentiality in the area of soft robotics, wearable devices, and fitness
    industries. A small initial defect present in such sensor may grow to a critical size during contraction and relaxation
    cycles leading to mechanical failure, therefore, prediction of fatigue life is inevitable. The crack growth approach is
    one of the amicable ways to estimate the fatigue life considering parameters like tear energy, crack geometry, and
    power law. In this work, crack growth approach based on power law is being proposed to predict fatigue life utilizing
    conducting and stretchable freestanding films consisted of SEBS rubber and dodecyl benzenesulfonic acid (DBSA)
    doped polyaniline composite. Utilizing this crack growth model for the prediction of fatigue life exhibited that such
    films can sustain more than a million cycles even at a large value of deformation.

    CiNii Article

  • Semitransparent Dye-Sensitized Solar Cells using Novel Blue- Colored Unsymmetrical Squaraine Dyes.

    Pritha Roy, Ajendra Kumar Vats, Shyam S. Pandey

    100th Annual Spring Meeting of Japan Chemical Society  Chemical Society of Japan

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    Event date: 2020.03.22 - 2020.03.25   Language:English  

  • Design and Synthesis of Novel NIR Dyes with Phosphonic Acid based Anchoring Groups for Dye-Sensitized Solar Cells

    Ajendra Kumar Vats, Shyam S. Pandey

    100th Annual Spring Meeting of Japan Chemical Society  Chemical Society of Japan

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    Event date: 2020.03.22 - 2020.03.25   Language:English  

  • Investigation of molecular orientation in thin films of polythiophenes fabricated on airliquid interface

    Subhajit Jana, Rajiv Kr. Pandey, Nikita Kumari, Takaaki Manaka, Shyam S. Pandey, Rajiv Prakash

    67 Spring Meeting of Japan Applied Physics Society  Japan Applied Physics Society

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    Event date: 2020.03.12 - 2020.03.15   Language:English  

  • Effect of dielectric interface on charge transport anisotropy in polymer thin-film transistors fabricated by friction transfer method

    Nikita Kumari, Manish Pandey, Shuichi Nagamatsu, Masakazu NakamuraShuzi Hayase and Shyam S. Pandey

    67 Spring Meeting of Japan Applied Physics Society  Japan Applied Physics Society

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    Event date: 2020.03.12 - 2020.03.15   Language:English  

    Conjugated polymers (CPs) offer adequate freedom to improve the charge transport in their thin films by tuning their chemical structure or processing techniques aiming towards enhancing their crystallinity. Exploiting quasi 1-dimensional nature of CPs is one of the best possible approaches to improve the carrier transport by uniaxially orienting them along the channel of an organic field-effect transistor (OFET). Various solution-based approaches in order to orient the CPs leading to high-performance OFETs has been demonstrated, however, the limitations like need of good solubility of the CPs, surface wettability, pre-aggregation in solution, etc., are the bottleneck to generalize them. Moreover, inevitability of halogenated solvents for film fabrication may also lead to serious health and environmental hazards during large scale production. Friction transfer is a solvent-free processing technique to fabricate large-area oriented polymer thin films and can effectively be utilized to overcome aforementioned challenges. In this work, role of dielectric surface to control the anisotropic charge transport in the OFETs has been extensively investigated and considering the optical and electrical characteristics, a possible transport mechanism has been proposed.

  • Fabrication of anisotropic OTFT utilizing oriented DPP polymer blend film by FTM

    Satoru Namba

    67 Spring Meeting of Japan Applied Physics Society,  Japan Applied Physics Society

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    Event date: 2020.03.12 - 2020.03.15   Language:Japanese  

  • Impact of the Regiospecificity on the Molecular Self Assembly in P3HT Thin Films Prepared by FTM Shubham Sharma, Nikita Kumari, Yoshito Ando, Shuichi Nagamatsu, Shyam S. Pandey

    Shubham Sharma

    6th International Conference on Advanced Nanomaterials and Nanotechnology (ICANN2019  Indian Institute of Technology

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    Event date: 2019.12.18 - 2019.12.21   Language:English  

  • Development of NIR Dyes with Varying Anchoring Groups with Combined Theoretical and Experimental Approaches Ajendra Kumar Vats, Shuzi Hayase, Syam S. Pandey

    Shyam Pandey

    29th Annual Meeting of Materials Research Society, Japan  MRS Japan

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    Event date: 2019.11.27 - 2019.11.29   Language:English  

  • Thickness Optimization of Screen-printed TiO2 Photoanode for Dye-Sensitized Solar Cells Ali Khalifa, Suhaidi Shafie, WZW Hasan, H. N. Lim, M. Rusop, Shyam S. Pandey, Hussein. A. AlSultan

    Ali Khalifa

    7th International Symposium on Applied Engineering and Sciences (SAES2019)   Universiti Putra Malaysia

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    Event date: 2019.11.11 - 2019.11.12   Language:English  

  • Effect of Dye Loading Time to The Efficiency of Dye-Sensitized Solar Cell Suraya Shaban, Suhaidi Shaffie, Mohd Amrallah Mustafa, Pandey Shyam Sudhir

    Suraya Shaban

    7th International Symposium on Applied Engineering and Sciences (SAES2019)   Universiti Putra Malaysia

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    Event date: 2019.11.11 - 2019.11.12   Language:English  

  • Investigation of Molecular Self-Assembly in Oriented Thin Films of RR-P3HT Prepared by Ribbon-Shaped FTM Shubham Sharma, Nikita Kumari, Shuichi Nagamatsu, Shyam S. Pandey

    Shubham Sharma

    7th International Symposium on Applied Engineering and Sciences (SAES2019)   Universiti Putra Malaysia

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    Event date: 2019.11.11 - 2019.11.12   Language:English  

  • A Comparative Study Related to Nature of Interface between Metal and Conjugated Polymer: Role of Molecular Ordering Nidhi Yadav, Nikita. Kumari, Shyam Pandey, Vipul. Singh

    Nidhi Yadav

    32nd International Microprocesses and Nanotechnology Conference (MNC-2019  Japan Applied Physics Society

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    Event date: 2019.10.28 - 2019.10.31   Language:English  

  • Design of NIR Dyes with Varying Anchoring Groups Aiming Towards High Stability and Photoconversion Efficiency Ajendra Kumar Vats, Gaurav Kapil, Shuzi Hayase, Shyam S. Pandey

    Shyam Pandey

    SPIE-Photonics West-2019 

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    Event date: 2019.08.11 - 2019.08.15   Language:English  

  • Synthesis and Photovoltaic Characterization of NIR Sensitive Squaraine Dyes with Extended pi conjugation for Dye-Sensitized Solar Cells, Ajendra Kumar Vats, Gaurav Kapil, Shuzi Hayase, Shyam S. Pandey

    Ajendra Kumar Vats

    56th Kyushu Branch Chemical Society Meeting,  Chemical Society of Japan

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    Event date: 2019.07.13   Language:English  

  • Alkyl-Chain Length Dependent Optical and Electronic Properties of Donor-Acceptor Copolymers; Nikita KUMARI, Manish PANDEY, Rakesh K GUPTA, Ajendra K VATS, Shuichi NAGAMATSU, Shuzi HAYASE, Shyam S PANDEY

    Nikita KUMARI

    10th International Conference on Materials for Advanced Technologies (ICMAT-2019)  MRS-Singapore

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    Event date: 2019.06.23 - 2019.06.28   Language:English  

  • Sensitization of Wide Band Gap Oxide Semiconductors by NIR Dyes with Varying Anchoring Groups for Molecular Photovoltaics; Ajendra Kumar VATS, Gaurav KAPIL, Shuzi HAYASE, Shyam S. PANDEY

    Ajendra Kumar Vats

    10th International Conference on Materials for Advanced Technologies (ICMAT-2019)  MRS-Singapore

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    Event date: 2019.06.23 - 2019.06.28   Language:English  

  • Electronic Devices Nikita Kumari, Shuichi Nagamatsu, Shyam S. Pandey

    Shyam S. Pandey

    7th Intentional Symposium on Organic and Inorganic Electronic Materials and Related Nanotechnologies (EM-NANO 2019) 

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    Event date: 2019.06.19 - 2019.06.22   Language:English  

  • Implication of the Nature of Anchoring groups on Photophysical Behaviour of NIR Dyes for Dye-Sensitized Solar Cells; Ajendra Kumar Vats, Shuzi Hayase, Shyam S. Pandey

    Ajendra Kumar Vats

    7th Intentional Symposium on Organic and Inorganic Electronic Materials and Related Nanotechnologies (EM-NANO 2019) 

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    Event date: 2019.06.19 - 2019.06.22   Language:English  

  • Synthesis and Characterization of NIR Dyes with Varying Anchoring Groups for Dye-Sensitized Solar cells, VATS Ajendra Kumar, PRADHAN Anusha, KAPIL Gaurav, HAYASE Shuzi, PANDEY Shyam S

    Ajendra Kumar Vats

    99th Spring Meeting of Japan Chemical Society  Chemical Society of Japan

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    Event date: 2019.03.16 - 2019.03.19   Language:English  

  • Computational Molecular Design of NIR Dyes with Varying Anchoring Groups for Dye-Sensitized Solar Cells

    Shyam S. Pandey

    The 66th Japan Applied Physics Society, Spring Meeting  Japan Applied Physics Society

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    Event date: 2019.03.09 - 2019.03.12   Language:English  

  • Improvement in the Performance of Organic Schottky Diodes through Combined Effect of Charge Double Layer and Oxide Interlayer Nikita Kumari, Manish Pandey, Shuichi Nagamatsu, Shuzi Hayase, Shyam S. Pandey

    Nikita Kumari

    The 66th Japan Applied Physics Society, Spring Meeting  Japan Applied Physics Society

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    Event date: 2019.03.09 - 2019.03.12   Language:English  

  • Design and Development of Novel Blue Colored Sensitizers for Efficient Cobalt Redox Shuttle Based Dye Sensitized Solar Cells Anusha Pradhan, Ajendra Kumar Vats, Shuzi Hayase, Shyam S. Pandey

    Anusha Pradhan

    28th Annual Meeting of MRS-Japan 2018,   MRS Japan

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    Event date: 2018.12.18 - 2018.12.20   Language:English  

  • Computational Molecular Design of Novel NIR Dyes: Implication of Nature of Anchoring Groups on Energetics and Binding to TiO2 Shyam S. Pandey, Ajendra Kumar Vats, Anusha Pradhan, Shuzi Hayase

    Shyam S. Pandey

    28th Annual Meeting of MRS-Japan 2018,   MRS Japan

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    Event date: 2018.12.18 - 2018.12.20   Language:English  

  • Synthesis, Characterization and Adsorption behavior of Unsymmetrical Squaraine Dyes Bearing Varying Anchoring Groups on Mesoporous TiO2 Ajendra Kumar Vats, Anusha Pradhan, Shuzi Hayase, Shyam S. Pandey

    Ajendra Kumar Vats

    28th Annual Meeting of MRS-Japan 2018,   MRS Japan

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    Event date: 2018.12.18 - 2018.12.20   Language:English  

  • Anisotropic Optoelectrical Characterization of Conjugated Polymer-GO Nanocomposite Oriented Thin films Fabricated by FTM Atul S. M. Tripathi, Rajiv K. Pandey, Rajiv Prakash, Shyam S. Pandey

    Atul S. M. Tripathi,

    28th Annual Meeting of MRS-Japan 2018,   MRS Japan

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    Event date: 2018.12.18 - 2018.12.20   Language:English  

  • Two-Dimensional Positional Mapping of Macroscopically Oriented Thin Films of Organic Semiconducting Polymers Nikita Kumari, Manish Pandey, Atul SM Tripathi, Shuichi Nagamatsu, Shuzi Hayase, Shyam S. Pandey

    Nikita Kumari

    6th International Symposium on Applied Engineering and Sciences (SAES-2018)  Kyushu Institute of Technology

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    Event date: 2018.12.15 - 2018.12.16   Language:English  

  • Correlating Molecular Orientation and Device Performance in Organic Electronic Devices based on Oriented Thin Films of Conjugated Polymers Shyam S. Pandey, Manish Pandey, Nikita Kumari, Atul SM Tripathi, Shuichi Nagamatsu, Shuzi Hayase

    Shyam S. Pandey

    6th International Symposium on Applied Engineering and Sciences (SAES-2018)  Kyushu Institute of Technology

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    Event date: 2018.12.15 - 2018.12.16   Language:English  

  • Implication of Dye Molecular Structure on Adsorption Behavior and Anchoring Stability Using NIR Sensitive Squaraine Dyes Ajendra Kumar Vats, Anusha Pradhan, Shuzi, Hayase, Shyam S, Pandey

    Ajendra Kumar Vats

    6th International Symposium on Applied Engineering and Sciences (SAES-2018)  Kyushu Institute of Technology

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    Event date: 2018.12.15 - 2018.12.16   Language:English  

  • Utilization of Oriented Conjugated Polymer Film Prepared by ribbon shaped FTM Towards Its Application for Flexible Organic Field Effect Transistor Atul S M, Tripathi, Nikita, Kumari, Shuichi, Nagamatsu, Shuzi, Hayase, Shyam S, Pandey

    Atul S M, Tripathi

    6th International Symposium on Applied Engineering and Sciences (SAES-2018)  Kyushu Institute of Technology

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    Event date: 2018.12.15 - 2018.12.16   Language:English  

  • Synthesis of Blue Sensitizers for Cobalt Redox Shuttle based Dye Sensitized Solar Cells Anusha Pradhan, Shuzi Hayase, Shyam S. Pandey

    Anusha Pradhan

    6th International Symposium on Applied Engineering and Sciences (SAES-2018)  Kyushu Institute of Technology

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    Event date: 2018.12.15 - 2018.12.16   Language:English  

  • Fabrication of thin films of donor-acceptor conjugated polymers using green solvents

    Shuichi Nagamatsu, Atsuyuki Tomita, Shuuto Nakahara, Shyam S. Pandey, Shuzi Hayase

    79th Autumn Meeting of Japan Applied Physics Society, Nagoya Congress Center, Sept. 18-21, 2018  Japan Applied Physics Society

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    Event date: 2018.09.18 - 2018.09.21   Language:Japanese  

  • Synthesis and photophysical characterization of far-red sensitive squaraine dyes bearing different functional groups for anchoring on mesoporous TiO2

    Ajendra Kumar Vats, Anusha Pradhan, Shuzi Hayase, Shyam S. Pandey

    79th Autumn Meeting of Japan Applied Physics Society, Nagoya Congress Center, Sept. 18-21, 2018  Japan Applied Physics Society

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    Event date: 2018.09.18 - 2018.09.21   Language:English  

  • Orientation and alkyl chain length dependence of carrier transport in regioregular Poly (3-alkylthiophenes fabricated by ribbon shaped FTM

    Atul SM Tripathi

    International Conference on Science and Technology of Synthetic Metals (ICSM-2018), BEXCO, BUSAN, SOUTH KOREA  

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    Event date: 2018.07.01 - 2018.07.06   Language:English  

  • Positional profiling of optical anisotropy in large area oriented conducting polymer films by an ingenious and economical approach

    Nikita Kumari

    International Conference on Science and Technology of Synthetic Metals (ICSM-2018), BEXCO, BUSAN, SOUTH KOREA  

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    Event date: 2018.07.01 - 2018.07.06   Language:English  

  • Design and Photophysical Characterization of Novel NIR Dyes for DSSCs Using Cobalt Electrolytes

    Anusha Pradhan

    International Conference on Science and Technology of Synthetic Metals (ICSM-2018), BEXCO, BUSAN, SOUTH KOREA  

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    Event date: 2018.07.01 - 2018.07.06   Language:English  

  • FTM as a Highly Facile Method towards Fabrication of Macroscopically Oriented Thin Films for Anisotropic Electronic Devices

    Shyam S. Pandey

    International Conference on Science and Technology of Synthetic Metals (ICSM-2018), BEXCO, BUSAN, SOUTH KOREA  

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    Event date: 2018.07.01 - 2018.07.06   Language:English  

  • Combining NIR dyes and Cobalt Electrolyte for High Efficiency Dye Sensitized Solar Cells

    Anusha Pradha

    55th Kyushu Branch Chemical Society, Meeting, Kokura International Conference Center, Kokura, Kitakyushu, Japan 30 Jun 2018 

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    Event date: 2018.06.30   Language:English  

  • Fabrication and Characterization of High Performance Organic Diode

    Nikita Kumari

    55th Kyushu Branch Chemical Society, Meeting, Kokura International Conference Center, Kokura, Kitakyushu, Japan 30 Jun 2018 

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    Event date: 2018.06.30   Language:English  

  • Prediction of Nature of Anchoring Groups on Electron Density Distribution in NIR Dyes by Quantum Chemical Calculations

    Ajendra Kumar Vats

    55th Kyushu Branch Chemical Society, Meeting, Kokura International Conference Center, Kokura, Kitakyushu, Japan 30 Jun 2018 

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    Event date: 2018.06.30   Language:English  

  • Large area orientation dependent charge transport in conjugated polymers prepared by ribbon shaped FTM Method

    Atul SM Tripathi

    55th Kyushu Branch Chemical Society, Meeting, Kokura International Conference Center, Kokura, Kitakyushu, Japan 30 Jun 2018 

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    Event date: 2018.06.30   Language:English  

  • Synthesis and photophysical characterization of positively charged NIR dyes for dye-sensitized solar cells.

    PRADHAN, Anush

    98th Japan Chemical Society Spring Meeting, Nihon daigaku, Funabashi, Tokyo, March 20- 23, 2018 

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    Event date: 2018.03.20 - 2018.03.23   Language:English  

  • Fabrication of PBTTTC14-OTFT by adhering deposition

    Ishida Masataka

    65th Spring Meeting of Japan Applied Physics Society, Waseda University, Tokyo, March 17-20, 2018 

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    Event date: 2018.03.17 - 2018.03.20   Language:Japanese  

  • Large area molecular orientation of conjugated polymers by ribbon-shaped FTM and its implication on anisotropic carrier transport

    Atul Mani Tripathi,

    65th Spring Meeting of Japan Applied Physics Society, Waseda University, Tokyo, March 17-20, 2018 

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    Event date: 2018.03.17 - 2018.03.20   Language:English  

  • Molecular weight dependence of anisotropy in the oriented films prepared by dynamic FTM

    Shuichi Nagamatsu,

    65th Spring Meeting of Japan Applied Physics Society, Waseda University, Tokyo, March 17-20, 2018 

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    Event date: 2018.03.17 - 2018.03.20   Language:Japanese  

  • Synthesis and characterization of positively charged NIR dyes for Cobalt electrolyte based dye-sensitized solar cells

    Anusha Pradhan

    2nd Asia-Pacific Hybrid Organic Photovoltaic Conference (AP-HOPV 2018), Kitakyushu, Japan Jan. 28-30, 2018  

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    Event date: 2018.01.28 - 2018.01.30   Language:English  

  • Prospects and Challenges with Dye-Sensitized Solar Cells utilizing Far-red Sensitive Dyes and Cobalt Complex Redox Electrolyte

    Shyam S. Pandey

    2nd Asia-Pacific Hybrid Organic Photovoltaic Conference (AP-HOPV 2018), Kitakyushu, Japan Jan. 28-30, 2018 

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    Event date: 2018.01.28 - 2018.01.30   Language:English  

  • Amicable Solutions for the Charge Recombination by Controlling the Ion Transport in Cobalt Electrolyte based Dye-Sensitized Solar Cells

    Shyam S. Pandey,

    27th Annual Meeting of Materials Research Society, Japan, Yokohama Port Opening Plaza, December 5-7, 2017 

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    Event date: 2017.12.05 - 2017.12.07   Language:English  

  • Floating Film Transfer as an Unique and Cost Effective Method for Fabrication of Macroscopically Oriented Thin Films of Conducting Polymers

    S. S. Pandey

    5th International Symposium on Applied Engineering and Sciences (SAES-2017), Universiti Putra Malaysia, 14th-15th Nov 2017 

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    Event date: 2017.11.14 - 2017.11.15   Language:English  

  • Orientation of Conjugated Polymers by Ribbon Shaped Floating Film Transfer Method: Implication of Nature Polymeric Backbone

    Atul S.M. Tripathi

    78th Autumn Meeting of Japan Applied Physics Society Meeting, Fukuoka International Conference Center, Fukuoka, Sept. 5-8, 2017  

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    Event date: 2017.09.05 - 2017.09.08   Language:English  

  • Preparation of PBTTT-C14 Films by Adsorbing Deposition in Suspension

    Masataka Ishida

    78th Autumn Meeting of Japan Applied Physics Society Meeting, Fukuoka International Conference Center, Fukuoka, Sept. 5-8, 2017 

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    Event date: 2017.09.05 - 2017.09.08   Language:Japanese  

  • Dye-Sensitized Solar Cells Utilizing Far-Red Sensitive Dye-Cocktail with Cobalt Electrolyte: Influence of Compact Oxide Surface Treatment

    Anusha Pradhan

    78th Autumn Meeting of Japan Applied Physics Society Meeting, Fukuoka International Conference Center, Fukuoka, Sept. 5-8, 201 

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    Event date: 2017.09.05 - 2017.09.08   Language:English  

  • Two-dimensional mapping of orientation of PQT film by FTM

    Shifumi Sadakata

    78th Autumn Meeting of Japan Applied Physics Society Meeting, Fukuoka International Conference Center, Fukuoka, Sept. 5-8, 2017 

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    Event date: 2017.09.05 - 2017.09.08   Language:Japanese  

  • Mapping of molecular alignment of conducting polymer using FTM

    Shifumi Sadakata

    54th Kyushu Branch Chemical Society Meeting, Kitakyushu International Conference Center, Kokura, Kitakyushu, July 1, 2017 

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    Event date: 2017.07.01   Language:Japanese  

  • Optoelectronic Characterization of Highly Oriented Conjugated Polymers Prepared by Ribbon-Shaped Dynamic FTM

    Atul SM Tripathi

    54th Kyushu Branch Chemical Society Meeting, Kitakyushu International Conference Center, Kokura, July 1, 2017 

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    Event date: 2017.07.01   Language:English  

  • Novel NIR Dyes in Combination with Cobalt Redox Shuttle for high efficiency dye-sensitized Solar cells

    Anusha PRADHAN

    54th Kyushu Branch Chemical Society Meeting, Kitakyushu International Conference Center, Kokura, July 1, 2017  

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    Event date: 2017.07.01   Language:English  

  • Highly oriented liquid crystalline thiophene polymer fabricated on the hydrophilic liquid substrate for high performance FET

    Manish Pandey

    9th International Conference on Molecular Electronics and Bio-electronics, Kanazawa, Japan, June 26-28, 2017  

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    Event date: 2017.06.26 - 2017.06.28   Language:English  

  • Implication of Surface Passivation of Substrate and Mesoporous TiO2 for Transparent Conductive Oxide-less Dye-sensitized Solar Cells

    Shyam S. PANDEY

    9th International Conference on Materials for Advanced Technologies (ICMAT-2017), Suntec, Singapore, June 18-13, 2017 

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    Event date: 2017.06.18 - 2017.06.23   Language:English  

  • Facile Fabrication and Orientation Analysis of Ribbon-Shaped Floating Thin Films of Conjugated Polymers

    Atul Shankar Mani TRIPATHI

    9th International Conference on Materials for Advanced Technologies (ICMAT-2017), Suntec, Singapore, June 18-13, 2017 

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    Event date: 2017.06.18 - 2017.06.23   Language:English  

  • Effect of Compact Oxide Layer Surface Passivation for Dye-Sensitized Solar Cells utilizing Cobalt Complex based Redox Electrolyte

    Anusha PRADHAN

    9th International Conference on Materials for Advanced Technologies (ICMAT-2017), Suntec, Singapore, June 18-13, 2017  

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    Event date: 2017.06.18 - 2017.06.23   Language:English  

  • Static vs. Dynamic FTM: Implication of the Solvent Evaporation on Casting Thin Floating-Films of Polymer Semiconductor

    64th Spring Meeting of Japan Applied Physics Society, 

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    Event date: 2017.03.14 - 2017.03.17   Language:English  

  • P3HT Nanofiber Films by Adhering Deposition in Suspension

    64th Spring Meeting of Japan Applied Physics Society, 

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    Event date: 2017.03.14 - 2017.03.17   Language:Japanese  

  • Topical mapping of orientation distribution in floating-thin films of conjugated polymers prepared by dynamic FTM

    64th Spring Meeting of Japan Applied Physics Society,  

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    Event date: 2017.03.14 - 2017.03.17   Language:Japanese  

  • Ribbon-shaped floating-film of polythiophene-based conjugated polymers for orientation analysis

    64th Spring Meeting of Japan Applied Physics Society,  

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    Event date: 2017.03.14 - 2017.03.17   Language:English  

  • Facile Synthesis and Characterization of Sulfur Doped Low Bandgap Bismuth Based Perovskites by Soluble Precursor Route

    Asia-Pacific Hybrid and Photo-voltaic Conference (AP-HOPV17),  

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    Event date: 2017.02.03 - 2017.02.04   Language:English  

  • Orientation Characteristics of Conjugated Polymers on Liquid Substrate

    26th Annual Meeting of Materials Research Society Japan,  

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    Event date: 2016.12.19 - 2016.12.22   Language:Japanese  

  • Molecular Design of far-red Sensitive Squaraine Dyes in-order to Probe the Minimum Energy Barrier for Dye-Regeneration

    26th Annual Meeting of Materials Research Society Japan, 

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    Event date: 2016.12.19 - 2016.12.22   Language:English  

  • Perovskite solar cells. Architecture of hetero interfaces for MAPbX3, CsPbX3, and MASnPbX

    26th Annual Meeting of Materials Research Society Japan,  

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    Event date: 2016.12.19 - 2016.12.22   Language:English  

  • Novel bismuth based perovskites by sulfur doping for future solar cells

    26th Annual Meeting of Materials Research Society Japan,  

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    Event date: 2016.12.19 - 2016.12.22   Language:English  

  • Protein Interactions of Far-red Sensitive Symmetrical Squaraine dyes

    4th International Symposium on Applied Engineering and Sciences (SAES 2016) 

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    Event date: 2016.12.17 - 2016.12.18   Language:English  

  • Theoretical Molecular Design of Novel Near Infra-red Sensitizers for Dye-Sesnitized Solar Cells using Gaussian Program Package

    3rd International Conference on Computational Methods in Engineering and Health Sciences (ICCMEH2016),  

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    Event date: 2016.12.17 - 2016.12.18   Language:English  

  • Parametric Optimization for Dye-Sesnitized Solar Cells using Far-Red Sensitizing Dyes with Cobalt Electrolyte

    4th International Symposium on Applied Engineering and Sciences (SAES 2016)  

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    Event date: 2016.12.17 - 2016.12.18   Language:English  

  • Orientation Parameters of NR-P3HT macromolecules in a Ribbon-shape Floating-film by Dynamic FTM

    4th International Symposium on Applied Engineering and Sciences (SAES 2016)  

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    Event date: 2016.12.17 - 2016.12.18   Language:English  

  • Solvent Driven Performance in Thin Floating Films of Conjugated polymers for Organic Field Effect Transistor: Role of Macroscopic Orientation

    4th International Symposium on Applied Engineering and Sciences (SAES 2016)  

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    Event date: 2016.12.17 - 2016.12.18   Language:English  

  • Orientation Characteristics in Ribbon Shaped Floating Thin-Films of Conjugated Polymers Prepared by Dynamic FTM

    12th International Conference on Nano-Molecular Electronics (ICNME-2016),  

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    Event date: 2016.12.14 - 2016.12.16   Language:English  

  • Develpoment of highly stable non-invasive ammonia sensor for the detection of sub-ppm level concentration of ammonia

    12th International Conference on Nano-Molecular Electronics (ICNME-2016) 

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    Event date: 2016.12.14 - 2016.12.16   Language:English  

  • Dye-Sensitized Solar Cells utilizing Far-red Sensitive Dyes in Combination with Cobalt Complex based Redox Electrolyte

    12th International Conference on Nano-Molecular Electronics (ICNME-2016),  

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    Event date: 2016.12.14 - 2016.12.16   Language:English  

  • Perovskite solar cells-Architecture of hetero interfaces

    12th International Conference on Nano-Molecular Electronics (ICNME-2016),  

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    Event date: 2016.12.14 - 2016.12.16   Language:English  

  • Efficient Glass Surface Functionalization with Peptide-Fluorophore Conjugate for Protein Bio-Chip Applications

    12th International Conference on Nano-Molecular Electronics (ICNME-2016),  

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    Event date: 2016.12.14 - 2016.12.16   Language:English  

  • Remarkable enhancement in the carrier transport of thiophene based conjugated polymers: Synergistic influence of orientation and blending

    12th International Conference on Nano-Molecular Electronics (ICNME-2016), 

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    Event date: 2016.12.14 - 2016.12.16   Language:English  

  • Photophysical Characterization and BSA Interaction of Direct Ring Carboxy Functionalized Symmetrical Squaraine Dyes

    12th International Conference on Nano-Molecular Electronics (ICNME-2016),  

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    Event date: 2016.12.14 - 2016.12.16   Language:English  

  • Sulfur doped lower band gap bismuth based perovskites for future solar cells

    77th Autumn Meeting of Japan Applied Physics Society, Toki Messe, Niggata, Japan 

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    Event date: 2016.09.13 - 2016.09.16   Language:English  

  • Ambient Fabrication of Oriented PBTTT-based FET by FTM

    77th Autumn Meeting of Japan Applied Physics Society,  

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    Event date: 2016.09.13 - 2016.09.16   Language:English  

  • Casting of floating films of organic semi-conductors on liquid substrates for anisotropic electronics

    KJF International Conference on Organic Materials for Electronics and Photonics, 

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    Event date: 2016.09.04 - 2016.09.07   Language:English  

  • Molecular Design and Photophysical Characterization of Squaraine Dyes with Small Energy Barrier for Electron Injection and Dye Regeneration

    International Union of Materials Research Societies:International Conference on Electronic Materials (IUMRS-ICEM-2016),  

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    Event date: 2016.07.04 - 2016.07.08   Language:English  

  • Selection of suitable chloride precursor for bigger crystal growth and reduced defects in lead halide perovskites

    International Union of Materials Research Societies:International Conference on Electronic Materials (IUMRS-ICEM-2016), 

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    Event date: 2016.07.04 - 2016.07.08   Language:English  

  • Application of Zinc Oxide as Electron Transport Materials for Perovskite Solar Cells

    53rd Kyushu Branch Chemical Society Meeting,  

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    Event date: 2016.07.02   Language:Japanese  

  • Enhancing the efficiency of cylindrical solar cells using dye-sensitized solar cells

    53rd Kyushu Branch Chemical Society Meeting,  

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    Event date: 2016.07.02   Language:Japanese  

  • Fabrication of Photo conversion Elements utilizing 2D Perovskites

    53rd Kyushu Branch Chemical Society Meeting,  

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    Event date: 2016.07.02   Language:Japanese  

  • Enhancing the efficiency of cylindrical solar Cells

    53rd Kyushu Branch Chemical Society Meeting,  

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    Event date: 2016.07.02   Language:Japanese  

  • Constraints of NIR Dyes for Dye-Sensitized Solar Cells and Its Amicable Solution by Theoretical Molecular Design

    International Conference on Science and Technology of Synthetic Metals (ICSM-2016). 

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    Event date: 2016.06.26 - 2016.07.01   Language:English  

  • Highly oriented conjugated polymers by FTM method towards anisotropic photonic and electronic devices

    International Conference on Science and Technology of Synthetic Metals (ICSM-2016). 

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    Event date: 2016.06.26 - 2016.07.01   Language:English  

  • Enhanced Field Effect Mobility with Blends of Organic Semiconductors

    9th International Symposium on Organic Molecular Electronics (ISOME-2016) 

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    Event date: 2016.05.18 - 2016.05.20   Language:English  

  • Design and Photophysical Characterizations of Far-red Sensitive Squaraine Dyes with Small Energy Barrier for Dye Regeneration

    96th Spring Meeting of Japan Chemical Society 

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    Event date: 2016.03.24 - 2016.03.27   Language:English  

  • Synthesis and Characterization of Symmetrical Squaraine Dyes along with their Interaction with BSA

    96th Spring Meeting of Japan Chemical Society 

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    Event date: 2016.03.24 - 2016.03.27   Language:English  

  • Multi-layer coating of oriented conjugated polymer films via FTM method

    The 63rd Japan Society of Applied Physics Spring Meeting 

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    Event date: 2016.03.19 - 2016.03.22   Language:English  

  • Alignment of Molecular Acceptors in Oriented π-Conjugated Polymer Thin Film

    The 63rd Japan Society of Applied Physics Spring Meeting 

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    Event date: 2016.03.19 - 2016.03.22   Language:Japanese  

  • Photophysical Investigations of Squaraine/Cyanine Dyes and Their Interaction with Protein towards NIR FRET Applications

    Maryala Saikiran

    India-Japan Expert Group Meeting on Biomolecular Electronics and Organic Nanotechnology for Environment Preservation (IJEGMBE-2015), Kyushu Institute of Technology, Japan 

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    Event date: 2015.12.22 - 2015.12.25   Language:English  

  • Dynamic Casting of Floating-film and Transferring of Oriented π-Conjugated Polymers towards Anisotropic Electronics

    Wataru Takashima

    India-Japan Expert Group Meeting on Biomolecular Electronics and Organic Nanotechnology for Environment Preservation (IJEGMBE-2015), Kyushu Institute of Technology, Japan 

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    Event date: 2015.12.22 - 2015.12.25   Language:English  

  • Tandem Dye-sensitized Solar Cells Based on TCO-less Back Contact Bottom Electrodes

    Ajay K. Baranwal

    India-Japan Expert Group Meeting on Biomolecular Electronics and Organic Nanotechnology for Environment Preservation (IJEGMBE-2015), Kyushu Institute of Technology, Japan 

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    Event date: 2015.12.22 - 2015.12.25   Language:English  

  • Parametric Optimizations of Experimental Conditions for DyeSensitized Solar Cells Based on Far-red Sensitive Squaraine Dye

    Takuya Morimoto

    India-Japan Expert Group Meeting on Biomolecular Electronics and Organic Nanotechnology for Environment Preservation (IJEGMBE-2015), Kyushu Institute of Technology, Japan 

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    Event date: 2015.12.22 - 2015.12.25   Language:English  

  • π-Conjugated Polymer Thin Film Device Fabrication using Biomassderived Solvents

    Shuichi Nagamatsu

    India-Japan Expert Group Meeting on Biomolecular Electronics and Organic Nanotechnology for Environment Preservation (IJEGMBE-2015), Kyushu Institute of Technology, Japan 

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    Event date: 2015.12.22 - 2015.12.25   Language:English  

  • Design and Development Novel NIR Dyes by Extending the π- Conjugation for Molecular Photovoltaics

    Shyam S. Pandey

    India-Japan Expert Group Meeting on Biomolecular Electronics and Organic Nanotechnology for Environment Preservation (IJEGMBE-2015), Kyushu Institute of Technology, Japan 

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    Event date: 2015.12.22 - 2015.12.25   Language:English  

  • Far-red sensitive squaraine dyes with extended pi-conjugation toward anchoring group for molecular photovoltaics.

    S.S. PANDEY

    THE INTERNATIONAL CHEMICAL CONGRESS OF PACIFIC BASIN SOCIETIES 2015 Honolulu, Hawaii, USA 

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    Event date: 2015.12.15 - 2015.12.20   Language:English  

  • Molecular design and photophysical characterization of squaraine dyes with varying fluoroalkyl substituents.

    T. Morimoto

    The 15th International Discussion & Conference on Nano Interface Controlled Electronic Devices (IDC-NICE 2015) 

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    Event date: 2015.12.15 - 2015.12.20   Language:English  

  • Alignments of F4TCNQ Anions in Oriented P3HT Thin Film

    Shuichi NAGAMATSU

    25th Annual Symposium of Materials Resaerch Society, Yokohama Japan 

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    Event date: 2015.12.08 - 2015.12.10   Language:Japanese  

  • Controlling the Diffusion of Bulky Cobalt Ions through the Nanopores for Enhancing the Efficiency of TCO-less Dye-Sensitized Solar Cells using Cobalt Redox Shuttle

    Shyam S. PANDEY

    25th Annual Symposium of Materials Resaerch Society, Yokohama Japan 

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    Event date: 2015.12.08 - 2015.12.10   Language:English  

  • Casting Procedure of Conducting Polymers for Delighting Potential Performance

    Wataru TAKASHIMA

    25th Annual Symposium of Materials Resaerch Society, Yokohama Japan 

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    Event date: 2015.12.08 - 2015.12.10   Language:Japanese  

  • Crystal Growth Control of the Near-Infrared Absorbing Perovskite Solar Cells Consisting of Tin Halide Complex

    MRS-2015 Fall Meeting, Boston, Massachusetts, USA 

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    Event date: 2015.11.29 - 2015.12.04   Language:English  

  • Design of Squaraine Based NIR Dyes with Extended -πconjugation for Dye-Sensitized Solar Cells

    3rd International Symposium on Applied Engineering and Sciences (SAES2015) 

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    Event date: 2015.11.23 - 2015.11.24   Language:English  

  • NANOMETRIC INTERFACE CONTROL AND OPTIMIZATION IN TCO-LESS DYE SENSITIZED SOLAR CELLS

    Shyam S. Pandey

    The 15th International Discussion & Conference on Nano Interface Controlled Electronic Devices (IDC-NICE 2015) 

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    Event date: 2015.10.07 - 2015.10.09   Language:English  

  • Orientation factors in floating-film transfer method

    Manish Pandey

    76th Autumn Meeting of Japan Applied Physics Society,-Nagoya Congres Center 

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    Event date: 2015.09.13 - 2015.09.17   Language:English  

  • Controlled Crystal Growth of MAPbI3 with Smooth Surface Using EACl and DMSO

    V. Murugan

    2015-Autumn Meeting of Electrochemical Society, Japan, Saitama University, 

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    Event date: 2015.09.11 - 2015.09.13   Language:English  

  • Organic-Inorganic hybrid solar cells using Sb-Xanthates

    H. Tanaka

    2015-Autumn Meeting of Electrochemical Society, Japan, Saitama University, 

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    Event date: 2015.09.11 - 2015.09.13   Language:Japanese  

  • Orientation of Conjugated Polymers Through Floating Film Transfer Method

    Manish Pandey

    ICMAT 2015 and IUMRS-ICA 2015, Suntec, Singapore 

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    Event date: 2015.06.28 - 2015.07.03   Language:English  

  • Flat Titanium based Photoanode and Counter Electrode for Transparent Conductive Oxide-less Dye sensitized Solar Cells

    Azwar Hayat

    ICMAT 2015 and IUMRS-ICA 2015, Suntec, Singapore 

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    Event date: 2015.06.28 - 2015.07.03   Language:English  

  • TCO-less Tandem DSSC with ITO-PET as Intermediate Layer Featuring Enhanced Spectra

    Ajay Kumar Baranwal

    ICMAT 2015 and IUMRS-ICA 2015, Suntec, Singapore 

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    Event date: 2015.06.28 - 2015.07.03   Language:English  

  • Design and Photophysical Characterizations of Fluoroalkyl Substituted Squaraine Dyes for Dye-Sensitized Solar Cells

    Shyam S. Pandey

    ICMAT 2015 and IUMRS-ICA 2015, Suntec, Singapore 

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    Event date: 2015.06.28 - 2015.07.03   Language:English  

  • Enhancement of photoconversion efficiency of TCO-less DSCs by enhancing the diffusion of cobalt species through nanomaterials used as an electrolyte absorbing layer.

    95th Spring meeting of Japan Chemical Society, Funabashi Campus, Nihon University, Chiba, Japan, March 26-29, 2015. 

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    Event date: 2015.03.26 - 2015.03.29   Language:English  

  • Synthesis and photophysical characterization of the direct ring functionalized unsymmetrical NIR cyanine dyes

    95th Spring meeting of Japan Chemical Society, Funabashi Campus, Nihon University, Chiba, Japan, March 26-29, 2015. 

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    Event date: 2015.03.26 - 2015.03.29   Language:English  

  • Perovskite solar cells using a CsPbI3

    95th Spring meeting of Japan Chemical Society, Funabashi Campus, Nihon University, Chiba, Japan, March 26-29, 2015. 

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    Event date: 2015.03.26 - 2015.03.29   Language:Japanese  

  • Analysis of Perovskite / Substrate by QCMD

    95th Spring meeting of Japan Chemical Society, Funabashi Campus, Nihon University, Chiba, Japan, March 26-29, 2015. 

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    Event date: 2015.03.26 - 2015.03.29   Language:Japanese  

  • Controlled crystal growth of lead halide perovskites by adding different types of chloride precursors

    95th Spring meeting of Japan Chemical Society, Funabashi Campus, Nihon University, Chiba, Japan, March 26-29, 2015. 

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    Event date: 2015.03.26 - 2015.03.29   Language:English  

  • Investigation of effective utilization of titanium (Ti) coil based cylindrical dye sensitized solar cells for indoor light application

    95th Spring meeting of Japan Chemical Society, Funabashi Campus, Nihon University, Chiba, Japan, March 26-29, 2015. 

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    Event date: 2015.03.26 - 2015.03.29   Language:English  

  • Hybrid type Perovskite Solar Cells using Cesium

    82nd Electrochemical Society, Japan, Spring Meeting, Yokohama National University, March 15-17, 2015. 

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    Event date: 2015.03.15 - 2015.03.17   Language:Japanese  

  • Fabrication of printable organic devices using solvents from biomass

    62nd Spring Meeting of Japan Applied Physics Society, Tokai University, March 11-14, 2015 

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    Event date: 2015.03.11 - 2015.03.14   Language:Japanese  

  • TCO-less Tandem dssc featuring enhanced spectra with new architectures

    62nd Spring Meeting of Japan Applied Physics Society, Tokai University, March 11-14, 2015 

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    Event date: 2015.03.11 - 2015.03.14   Language:English  

  • Optimization of suitable chloride precursor for better crystal growth of MAPbI3

    62nd Spring Meeting of Japan Applied Physics Society, Tokai University, March 11-14, 2015 

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    Event date: 2015.03.11 - 2015.03.14   Language:English  

  • Orientation of conjugated polymers by FTM method

    62nd Spring Meeting of Japan Applied Physics Society, Tokai University, March 11-14, 2015 

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    Event date: 2015.03.11 - 2015.03.14   Language:English  

  • Photophysical and photovoltaic characterization far-red sensitizing squaraine dyes aiming towards fine tuning of the molecular struture

    11th International Conference on Nanomolecular Electronics (ICNME-2014) 

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    Event date: 2014.12.17 - 2014.12.19   Language:English  

  • Implication of different dyes on the performance of coil type cylindrical dye sensitized solar cells for indoor applications

    Gaurav Kapil

    11th International Conference on Nanomolecular Electronics (ICNME-2014) 

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    Event date: 2014.12.17 - 2014.12.19   Language:English  

  • Transparent Conductive Oxide free Dye sensitized solar cell using flat Titanium sheet.

    Azwar Hayat

    11th International Conference on Nanomolecular Electronics (ICNME-2014) 

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    Event date: 2014.12.17 - 2014.12.19   Language:English  

  • Sn-Pb Halide Cocktail Perovskite Solar Cell Covering near IR Regions and Suppression of Charge Recombination

    2014 MRS Fall Meeting & Exhibit November 30 - December 5, 2014 Boston, Massachusetts, USA 

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    Event date: 2014.11.30 - 2014.12.05   Language:English  

  • Fabrication of Perovskite Solar Cells by Low-Temperature Process Using Zinc Oxide Precursor

    2014 MRS Fall Meeting & Exhibit November 30 - December 5, 2014 Boston, Massachusetts, USA 

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    Event date: 2014.11.30 - 2014.12.05   Language:English  

  • Optimization of TCO-less dye-sensitized solar cell using zinc-porphyrin dye cocktail in combination with cobalt redox electrolyte

    Electrochemical Society Autumn Meeting, Hokkaido University 

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    Event date: 2014.09.27 - 2014.09.28   Language:English  

  • Optical confinement effect to improve the performance of transparent conductive oxide less dye-sensitized solar cells

    Electrochemical Society Japan, Autumn Meeting, Hokkaido University, Sept-27-28, 2014 

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    Event date: 2014.09.27 - 2014.09.28   Language:Japanese  

  • TCO-less Dye-Sensitized Solar Cells Consisting of Dye-Cocktail and Cobalt Redox Shuttle based Electrolyte

    6th World Conference on Photovoltaic Energy Conversion (WCPEC-6), Kyoto International Conference Center, Kyoto, Japan, 

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    Event date: 2014.09.23 - 2014.09.27   Language:English  

  • Air Stable Cocktail Sn/Pb Halide Perovskite Sensitized Solar Cells for Near Infrared Photoconversion

    6th World Conference on Photovoltaic Energy Conversion (WCPEC-6), Kyoto International Conference Center, Kyoto, Japan, 

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    Event date: 2014.09.23 - 2014.09.27   Language:English  

  • Large-sized Dye-sensitized Solar Cells and Perovskite Solar Cells

    6th World Conference on Photovoltaic Energy Conversion (WCPEC-6), Kyoto International Conference Center, Kyoto, Japan, 

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    Event date: 2014.09.23 - 2014.09.27   Language:English  

  • Sn Doped Metal Halide Perovskite Sensitized Solar Cells Covering Near IR Region

    29th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC 2014), Netherlands, Sept. 22-26, 2014  

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    Event date: 2014.09.22 - 2014.09.28   Language:English  

  • Investigation of Metal xanthates as curing agents for epoxy resin

    64th Network Polymer Society Meeting, October 22-24, 2014, Kansai University, Osaka Japan 

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    Event date: 2014.09.22 - 2014.09.24   Language:English  

  • Substrate dependence on Sb2S3 crystal formation from xanthate precursor

    75th, Japan Applied Physics Society, Autumn Meeting, Hokkaido University 

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    Event date: 2014.09.17 - 2014.09.20   Language:Japanese  

  • Extended Spectral Photo Response utilizing TCO-less Tandem DSSC

    75th, Japan Applied Physics Society, Autumn Meeting, Hokkaido University 

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    Event date: 2014.09.17 - 2014.09.20   Language:English  

  • Characterization of Sn/Pb perovskite solar cells for controlling the charge separation interface

    75th, Japan Applied Physics Society, Autumn Meeting, Hokkaido University 

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    Event date: 2014.09.17 - 2014.09.20   Language:English  

  • Study of Tin-based organometal halide Perovskite Solar Cells

    75th, Japan Applied Physics Society, Autumn Meeting, Hokkaido University 

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    Event date: 2014.09.17 - 2014.09.20   Language:English  

  • Fabrication of Perovskite Solar Cells by Low-temperature Process using ZnO Precursor

    75th, Japan Applied Physics Society, Autumn Meeting, Hokkaido University 

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    Event date: 2014.09.17 - 2014.09.20   Language:English  

  • A simple procedure for orienting π-conjugated polymers in floating-film

    IUMRS-ICA-2014, Fukuoka University, Fukuoka, Japan, August 24-30, 2014  

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    Event date: 2014.08.24 - 2014.08.30   Language:English  

  • Axially anchored Phosphorus-Phthalocyanine dyes as NIR Sensitizer for Dye Sensitized Solar Cell

    IUMRS-ICA-2014, Fukuoka University, Fukuoka, Japan, August 24-30, 2014  

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    Event date: 2014.08.24 - 2014.08.30   Language:English  

  • Performance optimization of transparent conductive oxide less (TCO-less) back contact dye-sensitized solar cell using Zinc porphyrin dye employing cobalt based redox electrolyte

    IUMRS-ICA-2014, Fukuoka University, Fukuoka, Japan, August 24-30, 2014  

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    Event date: 2014.08.24 - 2014.08.30   Language:English  

  • Molecular Acceptor Alignment in Doped Friction-Transferred Polymer Thin Film

    IUMRS-ICA-2014, Fukuoka University, Fukuoka, Japan, August 24-30, 2014  

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    Event date: 2014.08.24 - 2014.08.30   Language:English  

  • Gallium (III) xanthate as a novel latent epoxy resin curing agent

    IUMRS-ICA-2014, Fukuoka University, Fukuoka, Japan, August 24-30, 2014  

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    Event date: 2014.08.24 - 2014.08.30   Language:English  

  • Cylindrical TCO-Less dye-sensitized solar cells with back contact structure

    IUMRS-ICA-2014, Fukuoka University, Fukuoka, Japan, August 24-30, 2014  

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    Event date: 2014.08.24 - 2014.08.30   Language:English  

  • Solution processed organic-inorganic hybrid solar cells fabricated from metal xanthate precursor

    IUMRS-ICA-2014, Fukuoka University, Fukuoka, Japan, August 24-30, 2014  

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    Event date: 2014.08.24 - 2014.08.30   Language:English  

  • Hybrid type Dye-Sensitized Solar Cells based on near IR dye and visible dye

    IUMRS-ICA-2014, Fukuoka University, Fukuoka, Japan, August 24-30, 2014  

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    Event date: 2014.08.24 - 2014.08.30   Language:English  

  • Molecular design of NIR dyes to enhance IPCE for the hybrid or cock-tail type DSSCs

    IUMRS-ICA-2014, Fukuoka University, Fukuoka, Japan, August 24-30, 2014  

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    Event date: 2014.08.24 - 2014.08.30   Language:English  

  • Prospects and Problems with Squaraine Dyes as far-red to NIR Sensitizer for Dye-Sensitized Solar Sells

    IUMRS-ICA-2014, Fukuoka University, Fukuoka, Japan, August 24-30, 2014  

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    Event date: 2014.08.24 - 2014.08.30   Language:English  

  • Effect of surface treatment and cross-sectional area of Ti wire on the performance of coil based cylindrical TCO-less cylindrical DSSCs

    IUMRS-ICA-2014, Fukuoka University, Fukuoka, Japan, August 24-30, 2014  

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    Event date: 2014.08.24 - 2014.08.30   Language:English  

  • Tandem dye Sensitized solar cells utilizing back contact transparent conductive oxide-less (TCO-less) bottom electrodes

    IUMRS-ICA-2014, Fukuoka University, Fukuoka, Japan, August 24-30, 2014  

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    Event date: 2014.08.24 - 2014.08.30   Language:English  

  • Sn/Pb halide-based perovskite sensitized solar cells covering near IR region

    IUMRS-ICA-2014, Fukuoka University, Fukuoka, Japan, August 24-30, 2014  

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    Event date: 2014.08.24 - 2014.08.30   Language:English  

  • Fabrication of CuInS2 Nano Particle by Metal Xanthate

    IUMRS-ICA-2014, Fukuoka University, Fukuoka, Japan, August 24-30, 2014  

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    Event date: 2014.08.24 - 2014.08.30   Language:English  

  • A SIMPLE METHOD TO DROP-CAST CONDUCTING POLYMER FILMS FOR LARGE-SCALE ORIENTATION

    International Conference on Science and Technology of Synthetic Metals (ICSM-2014), Turku, Finland, June 30-July 5, 2014  

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    Event date: 2014.06.30 - 2014.07.05   Language:English  

  • MOLECULAR DOPANT ALIGNMENT IN ORIENTED POLYMER THIN FILM

    International Conference on Science and Technology of Synthetic Metals (ICSM-2014), Turku, Finland, June 30-July 5, 2014  

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    Event date: 2014.06.30 - 2014.07.05   Language:English  

  • MOVING FROM FAR-RED TO NIR DYE-SENSITIZERS FOR DYE-SENSITIZED SOLAR CELLS

    International Conference on Science and Technology of Synthetic Metals (ICSM-2014), Turku, Finland, June 30-July 5, 2014  

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    Event date: 2014.06.30 - 2014.07.05   Language:English  

  • Electrical Characterization of CuInS2 Thin Film from Metal Xanthate Precursors

    IUMRS-ICA-2014, Fukuoka University, Fukuoka, Japan, August 24-30, 2014  

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    Event date: 2014.06.28 - 2014.08.30   Language:English  

  • nvestigation of Gallium xanthate as latent curing agent for epoxy resin

    VAGVALA, Tarun Chand

    51st Kyushu Branch Chemical Society Meeting, Kokura, Kitakyushu 

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    Event date: 2014.06.28   Language:English  

  • Efficiency enhancement TCO-less dye-sensitized solar cells by cocktail dyes

    Cho Sai

    51st Kyushu Branch Chemical Society Meeting, Kokura, Kitakyushu 

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    Event date: 2014.06.28   Language:Japanese  

  • Effect of Titanium coil photoanodes on the performance of cylindrical dye-sensitized solar cells

    *Gaurav Kapil

    51st Kyushu Branch Chemical Society Meeting, Kokura, Kitakyushu 

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    Event date: 2014.06.28   Language:English  

  • Dye Sensitized Solar Cells based on P-Substituted Phthalocyanine Dye

    H. Azwar

    51st Kyushu Branch Chemical Society Meeting, Kokura, Kitakyushu 

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    Event date: 2014.06.28   Language:English  

  • Investigation pertaining to the efficiency enhancement of photo-electrode utilizing metal mesh

    Yamaguchi Taihe

    51st Kyushu Branch Chemical Society Meeting, Kokura, Kitakyushu 

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    Event date: 2014.06.28   Language:Japanese  

  • Efficiency enhancement of hybrid solar cells bearing NIR Perovskites

    Sakaguchi Keita,

    51st Kyushu Branch Chemical Society Meeting, Kokura, Kitakyushu 

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    Event date: 2014.06.28   Language:Japanese  

  • Investigation for enhancing the efficiency of TCO-less dye-sensitized solar cells by optimizing the electrolyte layer thickness

    Furukawa Hiroaki,

    51st Kyushu Branch Chemical Society Meeting, Kokura, Kitakyushu 

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    Event date: 2014.06.28   Language:Japanese  

  • Investigation of enhancing the efficiency of printable perovskite solar cells

    Nishimura Kohei

    51st Kyushu Branch Chemical Society Meeting, Kokura, Kitakyushu 

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    Event date: 2014.06.28   Language:Japanese  

  • Device performance optimization of transparent conductive oxide less (TCO-less) back contact sensitized solar cell using zinc porphyrin sensitizer employing cobalt based redox shuttl

    M. Z. Molla

    51st Kyushu Branch Chemical Society Meeting, Kokura, Kitakyushu 

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    Event date: 2014.06.28   Language:English  

  • Tandem Dye Sensitized Solar Cell based on TCO-less bottom electrodes

    Ajay K. Baranwa

    51st Kyushu Branch Chemical Society Meeting, Kokura, Kitakyushu 

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    Event date: 2014.06.28   Language:English  

  • Research for efficiency enhancement of Pb-Perovskite solar cells by enhancing the light harvesting window

    Nakazato Ryji

    51st Kyushu Branch Chemical Society Meeting, Kokura, Kitakyushu 

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    Event date: 2014.06.28   Language:Japanese  

  • Investing the interface control in all solid dye-sensitized solar cells

    Takada Yusuke

    51st Kyushu Branch Chemical Society Meeting, Kokura, Kitakyushu 

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    Event date: 2014.06.28   Language:Japanese  

  • Development of solid-state solar cells with photoconversion in near infra-red region

    Kosei Fujiwara

    51st Kyushu Branch Chemical Society Meeting, Kokura, Kitakyushu 

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    Event date: 2014.06.28   Language:Japanese  

  • All-solid Sn halide perovskite sensitized solar cells

    Shuzi Hayase*

    40th IEEE PVSC Photovoltaic Specialists Conference, Denver, Colorado, USA 

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    Event date: 2014.06.08 - 2014.06.13   Language:English  

  • Transparent conductive oxide-less back contact dye-sensitized solar cell using Zinc porphyrin dye employing cobalt complex redox shuttle

    Md. Zaman Molla

    40th IEEE PVSC Photovoltaic Specialists Conference, Denver, Colorado, USA 

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    Event date: 2014.06.08 - 2014.06.13   Language:English  

  • Sn Perovskite Based Solar Cells Harvesting Light in NIR Region

    International Conference on Hybrid and Organic Photovoltaics (HOPV14) Lausanne, Switzerland, 11th to 14th May 2014 

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    Event date: 2014.05.11 - 2014.05.14   Language:English  

  • Hybrid Solar Cells Consisting of Controlled Perovskite Crystal Layers Grown on Self-Organized Monomolecular Layer Anchored on Porous Titania Layer

    2014 MRS Spring Meeting, San Francisco, USA 

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    Event date: 2014.04.21 - 2014.04.25   Language:English  

  • Investigation of Gallium (III) xanthate as latent curing agent for epoxy resin

    94th Japan Chemical Society Spring Meeting 

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    Event date: 2014.03.27 - 2014.03.30   Language:English  

  • Molecular design of NIR dyes to enhance IPCE for the hybrid type DSSCs

    94th Japan Chemical Society Spring Meeting 

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    Event date: 2014.03.27 - 2014.03.30   Language:Japanese  

  • Synthesis, Characterization and Aggregations Studies of Phosphorous Phthalocyanine Towards its Application in Dye Sensitized Solar Cells

    94th Japan Chemical Society Spring Meeting 

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    Event date: 2014.03.27 - 2014.03.30   Language:English  

  • Approaches implemented to enhance the photovoltaic characteristics of Coil based TCO-less cylindrical dye sensitized solar cells

    94th Japan Chemical Society Spring Meeting 

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    Event date: 2014.03.27 - 2014.03.30   Language:English  

  • TCO-less back contact dye sensitized solar cell using zinc porphyrin dye based on cobalt based redox electrolyte

    94th Japan Chemical Society Spring Meeting 

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    Event date: 2014.03.27 - 2014.03.30   Language:English  

  • Inorganic-organic hybrid solar cells utilizing perovskite

    94th Japan Chemical Society Spring Meeting 

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    Event date: 2014.03.27 - 2014.03.30   Language:Japanese  

  • Fabrication of thin film solar cells using metal xanthate precursors

    94th Japan Chemical Society Spring Meeting 

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    Event date: 2014.03.27 - 2014.03.30   Language:Japanese  

  • Solution processed organic-inorganic hybrid solar cells fabricated from metal complex precursors

    61th Japan Applied Physics Society Spring Meeting 

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    Event date: 2014.03.17 - 2014.03.20   Language:Japanese  

  • Non-vacuum process of CuInS2 thin films from metal xanthate precursors

    61th Japan Applied Physics Society Spring Meeting 

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    Event date: 2014.03.17 - 2014.03.20   Language:Japanese  

  • Organic-inorganic hybrid solar cells consisting of tin and lead perovskite

    61th Japan Applied Physics Society Spring Meeting 

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    Event date: 2014.03.17 - 2014.03.20   Language:Japanese  

  • Characterization of perovskite based hybrid solar cells by surface modification

    61th Japan Applied Physics Society Spring Meeting 

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    Event date: 2014.03.17 - 2014.03.20   Language:Japanese  

  • Photoelectric performance of Dye-Sensitized Solar Cells based on near IR dye

    2013-Japan Electrochemical Society Autumn Meeting 

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    Event date: 2013.09.27 - 2013.09.28   Language:Japanese  

  • Optical simulations of cylindrical dye-sensitized solar cells

    2013-Japan Electrochemical Society Autumn Meeting 

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    Event date: 2013.09.27 - 2013.09.28   Language:Japanese  

  • Characterization of Perovskite organic-inorganic hybrid solar cells

    2013-Japan Electrochemical Society Autumn Meeting 

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    Event date: 2013.09.27 - 2013.09.28   Language:Japanese  

  • Direction to High Performance TCO-less Dye-Sensitized Solar Cells

    2013-Japan Electrochemical Society Autumn Meeting 

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    Event date: 2013.09.27 - 2013.09.28   Language:Japanese  

  • Development of near infra-red dyes for cocktail dye-sensitized solar cells

    74th Autumn Meeting of Japan Applied Physics Society 

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    Event date: 2013.09.16 - 2013.09.20   Language:Japanese  

  • Optimization and Fabrication of Coil based TCO-less Cylindrical Dye-Sensitized Solar Cells

    2013 JSAP-MRS Joint Symposium 

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    Event date: 2013.09.16 - 2013.09.20   Language:English  

  • Device Performance Optimization of TCO-less Dye-Sensitized Solar Cells using Cobalt based Electrolytes

    2013 JSAP-MRS Joint Symposium 

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    Event date: 2013.09.16 - 2013.09.20   Language:English  

  • Dye sensitized solar cells based on axially ligated Phosphorus (III) Phthalocyanine dyes

    2013 JSAP-MRS Joint Symposium 

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    Event date: 2013.09.16 - 2013.09.20   Language:English  

  • Preparation of Organic Semiconductor Films using Plant-Derived Solvents

    74th Autumn Meeting of Japan Applied Physics Society 

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    Event date: 2013.09.16 - 2013.09.20   Language:Japanese  

  • Organic-inorganic Hybrid Solar Cells consisting of Perovskite Complex

    74th Autumn Meeting of Japan Applied Physics Society 

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    Event date: 2013.09.16 - 2013.09.20   Language:Japanese  

  • Characterization of Perovskite Hybrid Solar Cells by using Thermally Stimulated Current

    74th Autumn Meeting of Japan Applied Physics Society 

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    Event date: 2013.09.16 - 2013.09.20   Language:Japanese  

  • Light management of cylindrical dye sensitized solar cell using scattering structure

    74th Autumn Meeting of Japan Applied Physics Society 

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    Event date: 2013.09.16 - 2013.09.20   Language:Japanese  

  • Increase in solar cell performances of transparent conductive oxide-less cylinder dye-sensitized solar cells: simulation on light harvesting, increase in efficiency, and total electric power generation in a day

    SPIE International Conference on Organic Photonics and Electronics 

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    Event date: 2013.08.25 - 2013.08.29   Language:English  

  • Develpment of Infra-red photoconversion elements

    50th Kyushu Branch Chemical Society Meeting 

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    Event date: 2013.07.06   Language:Japanese  

  • Solid-state organic-inorganic hybrid solar cells using Perovskite materials

    50th Kyushu Branch Chemical Society Meeting 

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    Event date: 2013.07.06   Language:English  

  • Influence of nature of sensitizing dye adsorption on characteristics of solar cells

    50th Kyushu Branch Chemical Society Meeting 

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    Event date: 2013.07.06   Language:Japanese  

  • Phosphorus (III)-Phthalocyanine as Potential NIR Sensitizer for Dye Sensitized Solar Cells

    50th Kyushu Branch Chemical Society Meeting 

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    Event date: 2013.07.06   Language:English  

  • NIR solar cells using Silicon Phthalocyanine dyes

    50th Kyushu Branch Chemical Society Meeting 

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    Event date: 2013.07.06   Language:Japanese  

  • Discussion about enhancing the efficiency of TCO-less dye-sensitized solar cells

    50th Kyushu Branch Chemical Society Meeting 

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    Event date: 2013.07.06   Language:Japanese  

  • TCO-less back contact dye sensitized solar cell using cobalt based electrolyte

    50th Kyushu Branch Chemical Society Meeting 

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    Event date: 2013.07.06   Language:English  

  • Investigation pertaining to fabrication of Coil based Cylindrical DSSC

    50th Kyushu Branch Chemical Society Meeting 

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    Event date: 2013.07.06   Language:English  

  • Back contact TCO-less dye-sensitized solar cells using SnO2 as bottom electrode

    50th Kyushu Branch Chemical Society Meeting 

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    Event date: 2013.07.06   Language:Japanese  

  • Optical management in cylindrical dye-sensitized solar cells

    50th Kyushu Branch Chemical Society Meeting 

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    Event date: 2013.07.06   Language:Japanese  

  • Organic-inorganic hybrid thin film solar cells using ZnO precursor solution

    50th Kyushu Branch Chemical Society Meeting 

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    Event date: 2013.07.06   Language:Japanese  

  • Flexible transparent conductive oxide-less cylinder dye-sensitized solar cells

    6th International Photonics and Optoelectronics Meetings (POEM 2013) 

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    Event date: 2013.05.24 - 2013.05.27   Language:English  

  • Analysis of cocktail dye adsorption on titania using QCM-D

    80th Japan Electrochemical Society Spring Meeting, Tohoku University, Kawauchi Campus 

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    Event date: 2013.03.29 - 2013.03.31   Language:Japanese  

  • Characterization of all solid dye-sensitized solar cells fabricated using Peroveskite as dye

    T. Saito

    80th Japan Electrochemical Society Spring Meeting, Tohoku University, Kawauchi Campus 

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    Event date: 2013.03.29 - 2013.03.31   Language:Japanese  

  • Diffusion of the electrolyte in the TiO2 nanopore and electron transport in dye-sensitized solar cells

    M. Kawano

    80th Japan Electrochemical Society Spring Meeting, Tohoku University, Kawauchi Campus 

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    Event date: 2013.03.29 - 2013.03.31   Language:Japanese  

  • Direction to High Efficient TCO-less Dye-Sensitized Solar Cells

    H. Furukawa

    80th Japan Electrochemical Society Spring Meeting, Tohoku University, Kawauchi Campus 

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    Event date: 2013.03.29 - 2013.03.31   Language:Japanese  

  • Charge Separation and Recombination at the Nano-Interfaces of ZnO/dye/P3HT Hybrid Solar Cells

    Qing Shen

    60th JSAP Spring Meeting , Kanagawa Institute of Technology 

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    Event date: 2013.03.27 - 2013.03.30   Language:Japanese  

  • Fabrication of Tandem Dye Sensitized Solar Cells consisting of SUS mesh Back-contact Bottom Electrode

    Tsubasa Shiki,

    60th JSAP Spring Meeting , Kanagawa Institute of Technology 

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    Event date: 2013.03.27 - 2013.03.30   Language:Japanese  

  • Cylindrical dye sensitized solar cell having light collecting structure

    Sho Noguchi

    60th JSAP Spring Meeting , Kanagawa Institute of Technology 

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    Event date: 2013.03.27 - 2013.03.30   Language:Japanese  

  • Interface control of solid-state hybrid solar cells

    Yuhei Ogomi,

    60th JSAP Spring Meeting , Kanagawa Institute of Technology 

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    Event date: 2013.03.27 - 2013.03.30   Language:Japanese  

  • Cylindrical dye sensitized solar cell having light collecting structure

    NOGUCHI, Sho

    93rd Spring Meeting of Japan Chemical Society; Ritsumeikan University, Biwako Campus, Shiga 

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    Event date: 2013.03.22 - 2013.03.25   Language:Japanese  

  • Dye-sensitized solar cell stained with near-infrared sensitive phthalocyanine dyes

    FUJIKAWA Naotaka

    93rd Spring Meeting of Japan Chemical Society; Ritsumeikan University, Biwako Campus, Shiga 

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    Event date: 2013.03.22 - 2013.03.25   Language:Japanese  

  • Controlling the Charge Separation Interface in Organic-inorganic Hybrid Solar Cells

    OGOMI, Yuhei

    93rd Spring Meeting of Japan Chemical Society; Ritsumeikan University, Biwako Campus, Shiga 

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    Event date: 2013.03.22 - 2013.03.25   Language:Japanese  

  • Study of diffusion of electrolytes in the TiO2 nanopores and electron transport in the dye sensitized solar cells

    KAWANO, Minobu

    93rd Spring Meeting of Japan Chemical Society; Ritsumeikan University, Biwako Campus, Shiga 

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    Event date: 2013.03.22 - 2013.03.25   Language:Japanese  

  • Analysis of cocktail dye adsorption on titania using QCMD

    HIROTA, Ryohei

    93rd Spring Meeting of Japan Chemical Society; Ritsumeikan University, Biwako Campus, Shiga 

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    Event date: 2013.03.22 - 2013.03.25   Language:Japanese  

  • Transparent conductive oxide-less dye-sensitized solar cells with back contact structure;

    Shuzi Hayase

    10th International Conference on Nanomolecular Electronics (ICNME-2012), Awaji, Hyogo, Japan 

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    Event date: 2012.12.12 - 2012.12.14   Language:English  

  • Influence of Metal Coating and Aggregation Effects on Intrachain Excitons in Poly (3-Hexylthiophene)

    Shyam S. Pandey

    10th International Conference on Nanomolecular Electronics (ICNME-2012), December 12-14, Awaji, Hyogo, Japan. 

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    Event date: 2012.12.12 - 2012.12.14   Language:English  

  • Understanding the differential photovoltaic behavior of model squaraine dyes in the light of photophysical investigations;

    Shyam S. Pandey

    10th International Conference on Nanomolecular Electronics (ICNME-2012), December 12-14, Awaji, Hyogo, Japan 

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    Event date: 2012.12.12 - 2012.12.14   Language:English  

  • Outdoor photovoltaic performance Cylindrical TCO-less dye-sensitized solar cells;

    Jun Usagawa

    10th International Conference on Nanomolecular Electronics (ICNME-2012), December 12-14, Awaji, Hyogo, Japan 

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    Event date: 2012.12.12 - 2012.12.14   Language:English  

  • Investigation of relationship between diffusion for electrolyte in nanoporous TiO2 for Dye sensitized solar cells;

    Minobu Kawano

    10th International Conference on Nanomolecular Electronics (ICNME-2012), December 12-14, Awaji, Hyogo, Japan 

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    Event date: 2012.12.12 - 2012.12.14   Language:English  

  • Designing the Far-red Sensitive Squaraine Dyes for the Dye Sensitized Solar cells in the light of Photo-physical Investigations;

    S. S. Pandey

    Pacific Rim Meeting on Electrochemical and Solid State Science (PRIME-2012), Honolulu, Hawaii, USA.  

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    Event date: 2012.10.07 - 2012.10.12   Language:English  

  • Transparent Conductive Oxide-Less Cylinder Dye-Sensitized Solar Cells with Flexible Structure

    S. Hayase

    27th European Photovoltaic Solar Energy Conference (EU PVSEC-2012), September 24-27, Frankfurt, Germany 

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    Event date: 2012.09.24 - 2012.09.27   Language:English  

  • Design of far-red sensitizing dyes in the light of their fluorescence life-time for dye sensitized solar cells;

    Shyam S. Pandey

    International Union of Materials Research Society-International Conference on Electronic Materials (IUMRS-ICEM-2012), Yokohama, Japan.  

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    Event date: 2012.09.23 - 2012.09.28   Language:English  

  • Fullerene free sensitized bulk heterojunction solar cells using solution processable ZnO

    Sandeep K Das

    International Union of Materials Research Society-International Conference on Electronic Materials (IUMRS-ICEM-2012), Yokohama, Japan. 

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    Event date: 2012.09.23 - 2012.09.28   Language:English  

  • Diffusion behavior of electrolytes in the TiO2 nanopores for dye-sensitized solar cells

    Kawano Minobu

    73rd Autumn Meeting Japan Applied Physics Society; Ehime University, Japan 

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    Event date: 2012.09.11 - 2012.09.14   Language:Japanese  

  • Photoelectric conversion elements fabricated with hybrid organic/inorganic hetero-junctions

    Yuhei Ogomi

    73rd Autumn Meeting Japan Applied Physics Society; Ehime University 

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    Event date: 2012.09.11 - 2012.09.14   Language:Japanese  

  • Organic-inorganic hybrid bulk heterojunction solar cells utilizing ZnO precursor

    Yuhei Ogomi,

    73rd Autumn Meeting Japan Applied Physics Society; Ehime University 

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    Event date: 2012.09.11 - 2012.09.14   Language:Japanese  

  • Outdoor electricity generation characteristics in Cylindrical solar cells

    Jun Usagawa

    73rd Autumn Meeting Japan Applied Physics Society; Ehime University,  

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    Event date: 2012.09.11 - 2012.09.14   Language:English  

  • Tandem dye-sensitized solar cells bearing back contact electrodes in the bottom cell.

    Shiki Tsubasa

    73rd Autumn Meeting Japan Applied Physics Society; Ehime University 

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    Event date: 2012.09.11 - 2012.09.14   Language:English  

  • Dye adsorption feature on titania surface and role of dye aggregation inhibitor monitored by quartz crystal microbalance (QCM)

    Yuhei Ogomi

    SPIE, Sandiego, CA, USA 

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    Event date: 2012.08.12 - 2012.08.16   Language:English  

  • Efficient far-red sensitizing Squaraine Dye Bearing Cyano-acrylate Anchor for Dye Sensitized Solar Cells

    Gururaj M. Shivashimpi

    48th Kyushu Branch Electrochemical Society Meeting, Kitakyushu International Conference Centre 

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    Event date: 2012.06.30   Language:English  

  • Investigations pertaining to the tandem type dye-sensitized solar cells.

    Shiki Tsubasa

    48th Kyushu Branch Electrochemical Society Meeting, Kitakyushu International Conference Centre 

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    Event date: 2012.06.30   Language:English  

  • Investigations for nanometric controlled electrodes in the thin film organic solar Cells

    Tasaku Yumi,

    48th Kyushu Branch Electrochemical Society Meeting, Kitakyushu International Conference Centre 

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    Event date: 2012.06.30   Language:Japanese  

  • Dye sensitized solar cells bearing SnO2 electrodes

    Ayumu Kishimoto

    48th Kyushu Branch Electrochemical Society Meeting, Kitakyushu International Conference Centre 

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    Event date: 2012.06.30   Language:Japanese  

  • Solution processable solar cells using organo-metallic precursors

    Kenji Kukihara

    48th Kyushu Branch Electrochemical Society Meeting, Kitakyushu International Conference Centre 

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    Event date: 2012.06.30   Language:Japanese  

  • Organic- inorganic hybrid solar cells using ZnO acceptor

    Disuke Yamashita

    48th Kyushu Branch Electrochemical Society Meeting, Kitakyushu International Conference Centre 

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    Event date: 2012.06.30   Language:Japanese  

  • Investigation pertaining to the diffusion of cobalt electrolytes in the nanopores of TiO2 for dye sensitized solar cells

    Minobu Kawano

    48th Kyushu Branch Electrochemical Society Meeting, Kitakyushu International Conference Centre 

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    Event date: 2012.06.30   Language:Japanese  

  • Utilization of solution processable ZnO for dye sensitized thin film organic Solar cells

    Sandeep. K. Das

    48th Kyushu Branch Electrochemical Society Meeting, Kitakyushu International Conference Centre 

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    Event date: 2012.06.30   Language:English  

  • Back contact dye sensitized solar cells fabricated with high velocity oxy-fuel (HVOF) spray method

    Terumi Nishimura

    79th, Electrochemical Society, Spring Meeting,  

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    Event date: 2012.03.30 - 2012.03.31   Language:Japanese  

  • Cylindrical dye-sensitized solar cells with improved absorption of short wavelength light

    Jun Usagawa

    79th, Electrochemical Society, Spring Meeting,  

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    Event date: 2012.03.30 - 2012.03.31   Language:Japanese  

  • TCO-less dye-sensitized solar cells employing porous Ti as back contact electrodes

    Jun Usagawa

    79th, Electrochemical Society, Spring Meeting,  

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    Event date: 2012.03.30 - 2012.03.31   Language:Japanese  

  • Carrier transport in axially ligated macrocyclic dyes for dye-sensitized solar cells

    Yuhei Ogomi

    79th, Electrochemical Society, Spring Meeting,  

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    Event date: 2012.03.30 - 2012.03.31   Language:Japanese  

  • Investigation of adsorption behavior of dye-coadsorber and the influence on performance of dye-sesnitized solar cells

    Ryohei Hirota

    79th, Electrochemical Society, Spring Meeting,  

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    Event date: 2012.03.30 - 2012.03.31   Language:Japanese  

  • Photovoltaic performance of bottom electrode for tandem dye-sensitized solar cells

    OGOMI, Yuhei

    92nd, Spring Meeting of Japan Chemical Society,  

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    Event date: 2012.03.25 - 2012.03.28   Language:Japanese  

  • Analysis of Dye Adsorption behaviour by quartz crystal microbalance with dissipation (QCM-D)

    PANDEY, Shyam S

    92nd, Spring Meeting of Japan Chemical Society,  

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    Event date: 2012.03.25 - 2012.03.28   Language:English  

  • Influence of Nature of Anchoring Group in Photosensitization Behaviour of Unsymmetrical Squaraine Dyes

    SHIVASHIMPI Gururaj M

    92nd, Spring Meeting of Japan Chemical Society,  

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    Event date: 2012.03.25 - 2012.03.28   Language:English  

  • Study on use of short-wavelength light in cylinder shaped dye-sensitized solar cells

    USAGAWA, Jun;

    92nd, Spring Meeting of Japan Chemical Society 

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    Event date: 2012.03.25 - 2012.03.28   Language:Japanese  

  • TCO-less dye-sensitized solar cells employing novel porous Ti electrode as back contact electrodes

    Jun Usagawa

    58th,Spring Meeting of Japan Applied Physics Society 

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    Event date: 2012.03.15 - 2012.03.18   Language:Japanese  

  • Organic-inorganic Hybrid Thin Film Solar Cells Using Solution Processable Zinc Oxide

    Yuhei Ogomi

    58th,Spring Meeting of Japan Applied Physics Society 

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    Event date: 2012.03.15 - 2012.03.18   Language:Japanese  

  • Optical optimization of cylindrical dye sensitized solar cell

    Sho Noguchi

    58th,Spring Meeting of Japan Applied Physics Society 

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    Event date: 2012.03.15 - 2012.03.18   Language:Japanese  

  • Short-wavelength light absorption on cylindrical dye-sensitized solar cells

    Jun Usagawa

    58th,Spring Meeting of Japan Applied Physics Society 

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    Event date: 2012.03.15 - 2012.03.18   Language:Japanese  

  • DYE SENSITIZED SOLAR CELLS CONSISTING OF FLEXIBLE POROUS TITANIA SHEETS

    Y. Ogomi

    21st International Photovoltaic and Engineering Conference [PVSEC-21], Fukuoka Japan. 

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    Event date: 2011.11.28 - 2011.12.02   Language:English  

  • NOVEL FAR RED SENSITIZING UNSYMMETRICAL SQUARAINE DYE CONTAINING PYROLOQUINOLINE MOIETY FOR DYE SENSITIZED SOLAR CELLS

    S. S. Pandey

    21st International Photovoltaic and Engineering Conference [PVSEC-21] 

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    Event date: 2011.11.28 - 2011.12.02   Language:English  

  • Development of NIR Dyes for the Fabrication of Efficient Dye-Senstized Solar Cells

    Shyam S. Pandey

    11th International Discussion and Conference on Nano-Interface Controlled Devices (IDC-NICE-2011), Kyushu National Museum Dazaifu, Japan  

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    Event date: 2011.10.19 - 2011.10.22   Language:English  

  • Investigation of TiO2 surface passivation by far-red sensitizing squaraine dyes

    Shyam S. PANDEY

    The 6th Acenian Conference on Dye-sensitized and Organic Solar Cells (DSC-OPV6) 

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    Event date: 2011.10.16   Language:English  

  • Transparent Oxide less (TCO-less) Dye Sensitized Solar Cells

    Shuzi Hayase

    220th Electrochemical Society Meeting, Boston, MA, USA  

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    Event date: 2011.10.09 - 2011.10.14   Language:English  

  • Solution Processable Thin Film Organic Photovoltaic Cells based on Far-red Sensitizing Soluble Squaraine Dyes

    S. S. Pandey

    International Conference on Solid State Devices and Materials (SSDM-2011), WINC, Aichi, Japan  

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    Event date: 2011.09.28 - 2011.09.30   Language:English  

  • Femto to Milisecond Dynamics of Squaraine Moleculs Embeded in TiO2 Nanoparticle Thin Films

    G. de. Miguel

    First Bilateral Spanish-Japanese Symposium on Nanotechnology and Nano Materials on Environmental Challange (SJNANO-2011), Toledo, Spain  

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    Event date: 2011.09.13 - 2011.09.16   Language:English  

  • Studies of Squaraine Molecules in Solution and Deposited on to Quartz Substrates: From Femto to Millisecond Time Scale

    M. J. Marchena

    First Bilateral Spanish-Japanese Symposium on Nanotechnology and Nano Materials on Environmental Challange (SJNANO-2011), Toledo, Spain  

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    Event date: 2011.09.13 - 2011.09.16   Language:English  

  • Photovoltaic Performance of Dye-Sensitized Solar Cells based on Unsymmetrical Squaraine Dyes with Extended pi-Conjugation

    Shyam S. Pandey

    First Bilateral Spanish-Japanese Symposium on Nanotechnology and Nano Materials on Environmental Challange (SJNANO-2011), Toledo, Spain  

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    Event date: 2011.09.13 - 2011.09.16   Language:English  

  • Femto-Milisecond Dynamics of Squaraine Molecules Embeded on TiO2 Nanoparticle Thin Films

    G. de Miguel

    First Bilateral Spanish-Japanese Symposium on Nanotechnology and Nano Materials on Environmental Challange (SJNANO-2011), Toledo, Spain 

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    Event date: 2011.09.13   Language:English  

  • Study about action of dye absorption and photoelectric property for dye sensitized solar cells

    R.Hirota

    Electrochemical Society Japan, Autumn Meeting, Niigata Convention Center, Niigata, Japan 

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    Event date: 2011.09.09 - 2011.09.11   Language:Japanese  

  • Investigation of SnO2 bottom electrodes for Tandem Cells

    Kengo Sadamasu

    Electrochemical Society Japan, Autumn Meeting, Niigata Convention Center, Niigata, Japan 

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    Event date: 2011.09.09 - 2011.09.11   Language:Japanese  

  • TCO-less dye sensitized solar cells based on Cobalt electrolytes

    K. Mizukoshi

    Electrochemical Society Japan, Autumn Meeting, Niigata Convention Center, Niigata, Japan 

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    Event date: 2011.09.09 - 2011.09.11   Language:Japanese  

  • Cylinder shaped flexible dye sensitized solar cells

    Jun Usagawa

    Electrochemical Society Japan, Autumn Meeting, Niigata Convention Center, Niigata, Japan 

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    Event date: 2011.09.09 - 2011.09.11   Language:Japanese  

  • Investigation of diffusion of redox species through the nanopores of TiO2 layers

    Hiromi Sato

    Electrochemical Society Japan, Autumn Meeting, Niigata Convention Center, Niigata, Japan 

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    Event date: 2011.09.09   Language:Japanese  

  • Metal-o-metal linked phthalocyanine dyes for Near-IR absorbed dye-sensitized solar cells

    OGOMI, Yuhei

    Annual Meeting on PhotoChemistry-2011, Miyazaki, Japan  

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    Event date: 2011.09.06 - 2011.09.08   Language:Japanese  

  • Dye-Sensitized Solar Cells with Flexible nanoporous Titania Sheet-Transparent Conductive Oxide less Flexible DSC, TCO-less Cylinder DSC and Flexible Hybrid DSC.

    S. Hayase

    26th European Photovoltaic Solar Energy Conference and Exhibition, Hamberg, Germany 

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    Event date: 2011.09.05   Language:English  

  • Research for Hybrid Dye Sensitized Solar Cells based on SnO2/ TiO2 Double Layers

    Yuhei Ogomi

    72nd Japan Society for Applied Physics (JSAP) Autumn Meeting, Yamagata, University, Japan  

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    Event date: 2011.08.29 - 2011.09.02   Language:Japanese  

  • Parametric optimizations for circular spray nano vapour deposition to fabricate thin film organic polymer solar cells

    Sandeep K. Das

    72nd Japan Society for Applied Physics (JSAP) Autumn Meeting, Yamagata, University, Japan  

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    Event date: 2011.08.29 - 2011.09.02   Language:English  

  • Flexible Cylindrical dye sensitized solar cells

    Jun Usagawa

    72nd Japan Society for Applied Physics (JSAP) Autumn Meeting, Yamagata, University, Japan  

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    Event date: 2011.08.29 - 2011.09.02   Language:Japanese  

  • Transparent, conductive oxide-less cylinder type dye-sensitized solar cells (TCO-less cylinder DSC): solar cells with optical pathway

    Shuzi Hayase

    SPIE-International Society for Optics and Electronics, Sandiego, CA, USA  

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    Event date: 2011.08.21 - 2011.08.26   Language:English  

  • Fine-tuning the structure of unsymmetrical squaraine dyes towards the development of effi cient dye-sensitized solar cells

    Shyam S. Pandey

    SPIE-International Society for Optics and Electronics, Sandiego, CA, USA  

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    Event date: 2011.08.21   Language:English  

  • Research pertaining to enhancing the efficiency of cylindrical dye sensitized solar cells

    Jun Usagawa

    48th Kyushu Branch Chemical Society Meeting, Kitakyushu International Conference Center, Kitakyushu 

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    Event date: 2011.07.08   Language:Japanese  

  • Enhancing the efficiency of Tandem dye sensitized solar cells by optimizing SnO2 bottom electrodes

    Ikuma Miyazaki,

    48th, Kyushu Branch Chemical Society Meeting, Kitakyushu International Conference Center, Kokura, Kitakyushu,  

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    Event date: 2011.07.08   Language:Japanese  

  • Study of Electrochemical luminiscent devices

    Ryohei Hirota

    48th, Kyushu Branch Chemical Society Meeting, Kitakyushu International Conference Center, Kokura, Kitakyushu 

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    Event date: 2011.07.08   Language:Japanese  

  • Organic thin film solar cells fabricated by circular nano vapour spray deposition

    Tanaka Hiroki

    48th, Kyushu Branch Chemical Society Meeting, Kitakyushu International Conference Center, Kokura, Kitakyushu 

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    Event date: 2011.07.08   Language:Japanese  

  • Research pertaining to the utilization of conducting polymer composite catalyst for direct Ethano fuel cells

    Hironori Tanaka

    48th, Kyushu Branch Chemical Society Meeting, Kitakyushu International Conference Center, Kokura, Kitakyushu 

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    Event date: 2011.07.08   Language:Japanese  

  • Investigation of Tandem dye-sensitized solar cells

    Yuu Murasato

    48th, Kyushu Branch Chemical Society Meeting, Kitakyushu International Conference Center, Kokura, Kitakyushu 

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    Event date: 2011.07.08   Language:English  

  • Influence of nature dye adsorption on the characteristics of dye sensitized solar cells

    Ayumi Gunshin

    48th, Kyushu Branch Chemical Society Meeting, Kitakyushu International Conference Center, Kokura, Kitakyushu 

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    Event date: 2011.07.08   Language:Japanese  

  • Investigation of diffusion of redox species through the TiO2 nanopores

    Hiromi Sato

    48th, Kyushu Branch Chemical Society Meeting, Kitakyushu International Conference Center, Kokura, Kitakyushu 

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    Event date: 2011.07.08   Language:Japanese  

  • Hybrid Dye sensitized solar cells utilizing TiO2 double layers

    Sadamasu Kengo

    48th Kyushu Branch Chemical Society Meeting, Kitakyushu International Conference Center, Koura 

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    Event date: 2011.07.08   Language:Japanese  

  • Multiple Electron Injection from Dyes to Titania Layer for High Efficincy Dye-Sensitized Solar Cells

    Shuzi Hayase

    37th IEEE Photovoltaic Specialists Conference, Seattle, Washington, USA Jun 2011  

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    Event date: 2011.06.19   Language:English  

  • Dye Sensitized Solar Cells without utilizing Transparent Conducting Oxide Layers

    Shuzi Hayase

    8th Next Generation Solar Energy Harvesting Systems  

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    Event date: 2011.06.08 - 2011.06.10   Language:English  

  • Direct ethanol fuel cell consisting of polyaniline/Pd nanocomposition electrode

    Yoshitaka Hara

    78th Spring Meeting of Japan Electrochemical Society 

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    Event date: 2011.03.29 - 2011.03.31   Language:Japanese  

  • Study of diffusion of redox species through TiO2 nanopores modified by dye adsorption

    佐藤 宏美

    78th Spring Meeting of Japan Electrochemical Society 

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    Event date: 2011.03.29 - 2011.03.31   Language:Japanese  

  • Improvement of light harvesting for Cylinder Type TCO-less Dye Sensitized Solar Cells

    J. Usagawa

    78th Spring Meeting of Japan Electrochemical Society 

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    Event date: 2011.03.29 - 2011.03.31   Language:Japanese  

  • Hybrid dye sensitized solar cell on Glass cloth

    SADAMASU Kengo

    78th Spring Meeting of Japan Electrochemical Society 

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    Event date: 2011.03.29 - 2011.03.31   Language:Japanese  

  • Direct Ring Functionalized NIR Cyanine Dyes for Dye-Sensitized Solar Cells

    78th Spring Meeting of Japan Electrochemical Society 

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    Event date: 2011.03.29 - 2011.03.31   Language:English  

  • Investigating the factor affecting the efficiency of cylinder type TCO-less dye sensitized solar cells

    本人

    The 91st Annual Meeting of The Chemical Society of Japan 

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    Event date: 2011.03.26 - 2011.03.29   Language:Japanese  

  • Investigation of dye adsorption and diffusion in the light of structure property correlation for dye sensitized solar cells

    The 91st Annual Meeting of The Chemical Society of Japan 

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    Event date: 2011.03.26 - 2011.03.29   Language:English  

  • フタロシアニン及びナフタロシアニン色 素を用いたハイブリット形色素増感太陽 電池の研究

    本人

    The 91st Annual Meeting of The Chemical Society of Japan; Kanagawa University, Yokohama 

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    Event date: 2011.03.26 - 2011.03.29   Language:Japanese  

  • Fabrication of Organic Photovoltaic cells by Using Spray Nano Vapor Deposition

    Yuhei Ogomi

    58th JSAP Spring Meeting  

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    Event date: 2011.03.24 - 2011.03.27   Language:Japanese  

  • Ultrafast Dynamics of Electron Injection from Linearly Linked Two Dye Molecules to Metal Oxide Nanoparticles for Dye-sensitized Solar Cells

    本人

    58th JSAP Spring Meeting 

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    Event date: 2011.03.24 - 2011.03.27   Language:Japanese  

  • Investigation of Optical Characteristics in Cylinder Type TCO-less Dye Sensitized Solar Cells

    本人

    58th JSAP Spring Meeting 

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    Event date: 2011.03.24 - 2011.03.27   Language:Japanese  

  • Investigation of Dye Sensitized Solar Cells where Dyes are Anchored by Metal-O-Metal Linkage on Nanoporous SnO2

    B.W Park

    58th JSAP Spring Meeting , March 24-27  

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    Event date: 2011.03.24 - 2011.03.27   Language:Japanese  

  • Dye Sensitized Thin Film Organic Solar Cells: An Approach towards Enhancing the Photon Harvesting

    International School & Symposium on Multifunctional Molecule-based Materials (ISSMMM) 

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    Event date: 2011.03.13 - 2011.03.18   Language:English  

  • Dye Sensitized Thin Film Organic Solar Cells: An Approach towards Enhancing the Photon Harvesting

    Shyam S. Pandey

    International School & Symposium on Multifunctional Molecule-based Materials; Argonne National Laboratory; USA 

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    Event date: 2011.03.13 - 2011.03.18   Language:English  

  • 3D-dye-sensitized solar cells

    Shuzi Hayase

    International Chemical Congress of Pacific Basin Societies (PACIFICHEM-2010) 

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    Event date: 2010.12.15 - 2010.12.20   Language:English  

  • Development of squaraine based NIR dyes for dye double-layer dye sensitized solar cells

    International Chemical Congress of Pacific Basin Societies (PACIFICHEM-2010) 

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    Event date: 2010.12.15 - 2010.12.20   Language:English  

  • Application of squaraine dyes toward the fabrication of processable organic photovoltaic cells

    Yuhei Ogomi

    International Chemical Congress of Pacific Basin Societies (PACIFICHEM-2010) 

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    Event date: 2010.12.15 - 2010.12.20   Language:English  

  • Investigating the role of dye dipole on observed Voc in dye sensitized solar cells;

    23rd Micro- process and Nanotechnology Conference (MNC-2010),  

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    Event date: 2010.11.09 - 2010.11.12   Language:English  

  • Fabrication of Organic Photovoltaic cells by Using Air Atomizing Spray Vapor Deposition

    Takafumi Mizuno

    71st JSAP Autumn Meeting, 

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