研究者詳細 - 馬　廷麗

論文 - 馬　廷麗

分割表示453 件中 201 - 220 件目／全件表示 >>

Efficient oxygen reduction reaction catalyst derived from ZnO@ zeolite imidazolate framework nanowire composite 査読有り

Huang H., Li Y., Wang N., Chen S., Wang C., Ma T.

Inorganic Chemistry Communications 101 23 - 26 2019年03月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2019 Elsevier B.V. The oxygen reduction reaction (ORR) is one of the core reactions that occur in fuel cells and metal air batteries. Metal-free catalysts such as porous carbons are promising candidates for ORR and the performance of porous carbons strongly depends on their nanostructure. Herein, we reported the synthesis of high surface area N doped carbon nanotube (CNT-900) by using ZnO@zeolite imidazolate framework (ZnO@ZIF-8) nanowire as a precursor. When used for an ORR catalyst, the CNT-900 show obvious superior performance compared with the carbon derived from ZIF-8. In addition, it exhibits comparable activity with 20 wt% Pt/C and superior stability. Combined with green and facile synthesis strategy, the method in this work can be easily extended to synthesis other nanomaterials for energy storage and conversion application.

DOI： 10.1016/j.inoche.2019.01.008

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Preparation of Perovskite Films under Liquid Nitrogen Atmosphere for High Efficiency Perovskite Solar Cells 査読有り

Zhang P., Yang F., Kapil G., Ng C., Ma T., Hayase S.

ACS Sustainable Chemistry and Engineering 7 ( 4 ) 3956 - 3961 2019年02月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2019 American Chemical Society. High-quality perovskite film with high coverage and tight grain arrangement is a key factor for obtaining high performance and stable perovskite devices. Herein, high-quality perovskite films were successfully prepared by a liquid nitrogen assisted method (LN method). Here, the vaporization of liquid nitrogen reduces the ambient temperature and absorbs thermal energy from the substrate surface to increase the nucleation speed of perovskite. The scanning electron microscopy results showed that CH 3 NH 3 PbI 3 perovskite films prepared by the liquid nitrogen assisted method were dense and pinhole-free. The devices prepared by the LN method result in a high performance with the power conversion efficiency (PCE) up to 16.53%, and the performance could maintain more than 89% of the primary PCE after 30 days storage in a desiccator at room temperature.

DOI： 10.1021/acssuschemeng.8b05139

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Nanowire-Templated Synthesis of FeN <inf>x</inf> -Decorated Carbon Nanotubes as Highly Efficient, Universal-pH, Oxygen Reduction Reaction Catalysts 査読有り

Li Y., Huang H., Chen S., Wang C., Ma T.

Chemistry - A European Journal 25 ( 10 ) 2637 - 2644 2019年02月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim It is of increasing importance to develop highly active and economical oxygen reduction reaction (ORR) electrocatalysts, which have great significance for the large-scale implementation of various energy conversion systems, including metal–air batteries and fuel cells. Herein, a novel method to synthesize FeN x -decorated carbon nanotubes as a high-efficiency ORR catalyst, by utilizing ZnO nanowires as a sacrificial template and a Fe–polydopamine complex as metal and carbon sources, is reported. The obtained catalyst shows great potential for replacing Pt/C as the ORR catalyst under various pH conditions, from alkaline to acidic electrolytes. The high conductivity, large surface area of the carbon nanotube, and highly active FeN x species contributed greatly to the high performance of the catalyst. The work presented herein paves a new way for the synthesis of 1D porous nanomaterials for a broad range of energy-related applications.

DOI： 10.1002/chem.201805716

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Killing Two Birds with One Stone: A Highly Active Tubular Carbon Catalyst with Effective N Doping for Oxygen Reduction and Hydrogen Evolution Reactions 査読有り

Li Y., Huang H., Chen S., Wang C., Liu A., Ma T.

Catalysis Letters 149 ( 2 ) 486 - 495 2019年02月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2018, Springer Science+Business Media, LLC, part of Springer Nature. Abstract: The oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER) are two of the core reactions that occur in fuel cells and water electrolysis devices. Heteroatom-doped carbon materials are promising metal-free electrocatalysts to improve the conversion efficiency of these devices. To optimize the nanostructures of such carbon-based catalysts, herein, we reported an effective template method to synthesize N doped carbon nanotubes by using polydopamine as a precursor. The use of the ZnO nanowire not only serves as a self-sacrificial template to direct the formation of the nanotube, but also greatly extends the porosity of the carbon nanotube. Moreover, the polydopamine precursor also leads to effective N doping. An optimized sample, NCNT-900, shows high ORR performance comparable with that of Pt/C as well as good HER performance in both alkaline and acid media, making it one of the most effective carbon-based HER catalysts. This strategy offers an opportunity to synthesize catalysts with higher activity by rational design of a carbon precursor with higher N content or multi-heteroatom co-doping. Graphical Abstract: [Figure not available: see fulltext.].

DOI： 10.1007/s10562-018-2636-5

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In-situ growth of nanowire WO<inf>2.72</inf> on carbon cloth as a binder-free electrode for flexible asymmetric supercapacitors with high performance 査読有り

Huang X., Zhang Z., Li H., Wang H., Ma T.

Journal of Energy Chemistry 29 58 - 64 2019年02月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2018 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences For the first time, WO2.72 nanowires were in-situ grown on carbon cloth by a simple solvothermal reaction. The nanowire WO2.72/carbon cloth (NW WO2.72/CC) electrode showed good electrochemical performance with specific capacitance (Cs) reaching up to 398 F g−1 at a current density of 2 A g−1. The capacitance of 240 F g−1 was retained at a high current density of 16 A g−1. To further evaluate the energy storage performance, flexible asymmetric supercapacitors (FASCs) were fabricated using the activated carbon/carbon cloth (AC/CC) as negative electrode and NW WO2.72/CC as positive electrode, respectively. The FASCs delivered a high energy density of 28 Wh kg−1 at a power density of 745 W kg−1 and 13 Wh kg−1 even at a high power density of 22.5 kW kg−1. More impressively, 81% of the specific capacitance of the FASCs was retained after 10,000 cycles, indicating excellent cycle stability. This work indicates the NW WO2.72/CC holds a great potential for application in energy storage devices.

DOI： 10.1016/j.jechem.2018.01.024

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The Role of Lanthanum in a Nickel Oxide-Based Inverted Perovskite Solar Cell for Efficiency and Stability Improvement 査読有り

Teo S., Guo Z., Xu Z., Zhang C., Kamata Y., Hayase S., Ma T.

ChemSusChem 12 ( 2 ) 518 - 526 2019年01月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim A high-performing inverted perovskite solar cell (PSC) always relies on the hole transporting layer (HTL) quality and its interfaces. This work investigates the impact of La incorporation within the NiOx matrix for defects passivation, thus leading to high charge extraction ability and stability without compromising its power conversion efficiency. In the presence of La, the La–NiOx quality is clearly improved; without the formation of pinholes. In addition, the inclusion of La alters the energy band alignment; consequently, enhancing the hole transportation and widening the Voc (>1 V), as compared to the pristine NiOx. The beneficial effect of La was further revealed through the photoluminescence measurement and density of states (DOS) analysis, in which trap states are passivated by La. More importantly, the perovskite solar cell, with La–NiOx as the HTL, exhibits 21 % enhancement in efficiency and a remarkable stability that is greater than that of pristine NiOx. This also unlocks an opportunity for commercialization.

DOI： 10.1002/cssc.201802231

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A facile approach for the fabrication of loading-controlled Ag/C foam catalyst 査読有り

Liu A., Ren X., Yao Y., Yang Q., Gao M., Yang Y., Guo J., Li Y., Gao L., Ma T.

Ionics 25 ( 1 ) 361 - 365 2019年01月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2018, Springer-Verlag GmbH Germany, part of Springer Nature. A loading-controlled Ag/C foam catalyst prepared by facile electrochemical growth in an environmentally friendly electrolyte with 5,5-dimethylhydantoin (DMH) and niacin (NA) as complexing agents is reported. By controlling the cathodic current density and the growth time, the loading amount of silver on carbon support can be easily controlled. Ag/C foam catalyst with small size, ideal distribution, and controllable loading amount of Ag particles can be obtained on foam carbon support.

DOI： 10.1007/s11581-018-2769-y

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Free-standing NiCo <inf>2</inf> S <inf>4</inf> @VS <inf>2</inf> nanoneedle array composite electrode for high performance asymmetric supercapacitor application 査読有り

Zhang Z., Huang X., Wang H., Teo S., Ma T.

Journal of Alloys and Compounds 771 274 - 280 2019年01月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2018 Two-dimensional (2D) VS 2 nanosheets along the NiCo 2 S 4 needle arrays were prepared via an in situ sulfurization-assisted hydrothermal process. The unique nanostructure and phase were characterized by using field effect scanning electron microscope (FESEM), high-resolution transmission electron microscopy (HRTEM) and X-ray diffraction. The electrochemical properties were recorded by cyclic voltammetry, charge/discharge curves, and electrochemical impedance spectroscopy. The binder-free NiCo 2 S 4 @VS 2 electrode has contributed to a high specific capacity of 1023. 4 C g −1 with remarkable stability where 96% of its capacity retained after 2000 cycles at the current density of 0.45 A g −1 due to the synergetic effects. Promoting for practical applications, an asymmetric supercapacitor (ASC) composed of NiCo 2 S 4 @VS 2 as the positive electrode and activated carbon (AC) as the negative electrode with polypropylene as the separator was fabricated. The assembled ASC contributed to a maximum energy density of 31.2 Wh kg −1 at the power density of 775 W kg −1 with good stabilities under different current densities. Thereby, this rational design provides a new strategy for synthesizing electrode materials for high-performance supercapacitors.

DOI： 10.1016/j.jallcom.2018.08.325

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Structured crystallization for efficient all-inorganic perovskite solar cells with high phase stability 査読有り

Wang Z., Baranwal A., Kamarudin M., Kamata Y., Ng C., Pandey M., Ma T., Hayase S.

Journal of Materials Chemistry A 7 ( 35 ) 20390 - 20397 2019年01月

記述言語：英語掲載種別：研究論文（学術雑誌）

© The Royal Society of Chemistry 2019. All-inorganic perovskites suffer from a phase transition from a cubic α-phase to a tetragonal δ-phase in the ambient atmosphere, although they have the advantage of higher thermal stability. Here, we demonstrated that yttrium-induced perovskite crystallization results in significantly improved phase stability of perovskite even under humid air conditions. Yttrium in precursors was found to impede the crystal growth of perovskite film to stabilize the α-phase of a CsPbI2Br phase and was finally incorporated into the CsPbI2Br perovskite lattice. This structural crystallization process induced by yttrium incorporation gave rise to denser compact films with small grains and host lattice rearrangement by partial substitution for Pb. As a result, a 360-fold phase stability improvement was achieved in humid air with 65% RH compared with the reference film. The favorable electronic structure for efficient electron-hole dissociation and carrier transport to the cathode led to a much-enhanced power conversion efficiency (PCE) of 13.25% after yttrium incorporation compared with only 8.46% for the reference cells in humid air. Moreover, yttrium-incorporated perovskite solar cells (PSCs) without encapsulation exhibited superior long-term stability when stored in ambient air with 65% RH, showing nearly no degradation over 14 h.

DOI： 10.1039/c9ta05556h

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2D nanoplate assembled nitrogen doped hollow carbon sphere decorated with Fe<inf>3</inf>O<inf>4</inf> as an efficient electrocatalyst for oxygen reduction reaction and Zn-air batteries 査読有り

Li Y., Huang H., Chen S., Yu X., Wang C., Ma T.

Nano Research 2019年01月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2019, Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature. Designing a highly efficient non-precious based oxygen reduction reaction (ORR) electrocatalyst is critical for the commercialization of various sustainable energy storage and conversion devices such as metal-air batteries and fuel cells. Herein, we report a convenient strategy to synthesis Fe3O4 embedded in N doped hollow carbon sphere (NHCS) for ORR. What’s interesting is that the carbon microsphere is composed of two-dimensional (2D) nanoplate that could provide more exposed active sites. The usage of solid ZnO nanowires as zinc source is crucial to obtain this structure. The Fe3O4@NHCS-2 exhibits better catalytic activity and durability than the commercial Pt/C catalyst. Moreover, it further displays high-performance of Zn-air batteries as a cathode electrocatalyst with a high-power density of 133 mW·cm−2 and high specific capacity of 701 mA·h·g−1. The special hollow structure composed 2D nanoplate, high surface area, as well as synergistic effect between the high active Fe3O4 nanoparticles and N-doped matrix endows this outstanding catalytic activity. The work presented here can be easily extended to prepare metal compounds decorated carbon nanomaterials with special structure for a broad range of energy storage and conversion devices. [Figure not available: see fulltext.].

DOI： 10.1007/s12274-019-2512-7

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Achievable high: V <inf>oc</inf> of carbon based all-inorganic CsPbIBr<inf>2</inf> perovskite solar cells through interface engineering 査読有り

Guo Z., Teo S., Xu Z., Zhang C., Kamata Y., Hayase S., Ma T.

Journal of Materials Chemistry A 7 ( 3 ) 1227 - 1232 2019年01月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2019 The Royal Society of Chemistry. In this work, a simple interface engineering process for SnO2 electron selective layer (ESL) surface passivation employing a SnCl2 solution is introduced, which has successfully reduced the energy loss for a high open-circuit voltage (Voc) output and consequently improved the performance of all-inorganic CsPbIBr2 perovskite solar cells (PSCs). It was found that surface passivation can effectively suppress the recombination process at the interface between the perovskite and SnO2 due to higher recombination resistance. The shorter PL decay time is attributed to the excellent electron extraction from the perovskite film. After optimizing surface passivation, the power conversion efficiency (PCE) was enhanced from 4.73% to 7.00% and a high Voc of 1.31 V was achieved, which is one of the highest Voc values reported for inorganic Cs-based PSCs. More importantly, the passivated SnO2 based device retains 95.5% of its initial performance at 90 °C in air without encapsulation. This work provides a simple and efficient interface engineering method to improve the Voc and efficiency of all-inorganic PSCs.

DOI： 10.1039/c8ta09838g

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Passivation of Grain Boundary by Squaraine Zwitterions for Defect Passivation and Efficient Perovskite Solar Cells 査読有り

Wang Z., Pradhan A., Kamarudin M., Pandey M., Pandey S., Zhang P., Ng C., Tripathi A., Ma T., Hayase S.

ACS Applied Materials and Interfaces 2019年01月

記述言語：英語掲載種別：研究論文（学術雑誌）

Copyright © 2019 American Chemical Society. 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 Pb 2+ 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 CH 3 NH 3 PbI 3 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 molecules with different energy offset affect the charge extraction, which is suggested to facilitate exciton separation at the perovskite-SQ interface. These benefits lead to enhanced perovskite efficiency from 15.77 to 18.83% with the fill factor approaching 80%, which is among the highest efficiency reported for MAPbI 3 solar cells fabricated in an ambient environment at 60% relative humidity (RH). Considerable retardation of perovskite device degradation was achieved, retaining 90% of initial efficiency when kept 600 h at 60 ± 5% RH.

DOI： 10.1021/acsami.8b22044

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Development of a mixed halide-chalcogenide bismuth-based perovskite MABiI <inf>2</inf> S with small bandgap and wide absorption range 査読有り

Zhang C., Teo S., Guo Z., Gao L., Kamata Y., Xu Z., Ma T.

Chemistry Letters 48 ( 3 ) 249 - 252 2019年01月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2019 The Chemical Society of Japan. During the last years, lead perovskites have achieved high power conversion efficiency of 23%. However, their long-term stability and toxicity are still crucial issues that required attention. In this study, we are the first to report on the synthesis and characterizations of a new lead-free mixed halide-chalcoge-nide perovskite MABiI 2 S (MBIS), and have determined its physical and optical properties by various testing methods. The MBIS has a low bandgap of 1.52 eV, with an extended absorption onset up to over 1000 nm. Solar cells fabricated with the MBIS were inspected and device improvements were applied.

DOI： 10.1246/cl.180919

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Current progress in interfacial engineering of carbon-based perovskite solar cells 査読有り

Meng F., Liu A., Gao L., Cao J., Yan Y., Wang N., Fan M., Wei G., Ma T.

Journal of Materials Chemistry A 7 ( 15 ) 8690 - 8699 2019年01月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2019 The Royal Society of Chemistry. Using carbon paste as the back electrode for perovskite solar cells (C-PSCs) has attracted significant attention due to their low cost and excellent stability. In general, the device structure of the fabricated C-PSCs is hole transport layer (HTL) free, and the carbon paste electrodes (CPEs) could directly collect the photo-generated holes. Therefore, interfacial engineering between the perovskite and CPE plays a crucial role in charge collection and affects the performance of C-PSCs. Many studies have been carried out in interfacial engineering so far; however, no review has summarized the work done in this field. Herein, we summarize the continuing progress in interfacial engineering of C-PSCs. Two kinds of contacts have been defined due to the different interfacial contacts in C-PSCs: bi-interfacial and tri-interfacial structures. Techniques for the fabrication of perovskite layers, CPEs, and insulating layers have been discussed for each structure, including the main issues and solutions. Finally, conclusions and perspectives are provided for the future designs and development of C-PSCs.

DOI： 10.1039/c9ta01364d

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Melamine Hydroiodide Functionalized MAPbI<inf>3</inf> Perovskite with Enhanced Photovoltaic Performance and Stability in Ambient Atmosphere 査読有り

Yang F., Kamarudin M.A., Hirotani D., Zhang P., Kapil G., Ng C.H., Ma T., Hayase S.

Solar RRL 3 ( 1 ) 2019年01月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Despite the remarkable performance of organometallic halide perovskite solar cells (PSCs), their ultimate stability is still a major issue that inhibits the commercialization of this eminent technology. Herein, melamine hydroiodide (MLAI) is added to function methyl ammonium (CH3NH3+, MA+) lead iodide perovskite for fabricating structured perovskite with enhanced photovoltaic performance and stability in the harsh ambient atmosphere (35 °C, 60–70% relative humidity). Nearly no new phase formed even incorporated 25 mol.% MLAI induces the strain in the perovskite crystal structure. The MLAI-structured perovskite film shows a denser and smoother surface than the pristine MAPbI3 perovskite. Planar PSCs based on 2 mol.% MLAI-functionalized perovskite show 17.2% power conversion efficiency with nearly no hysteresis which is much higher than pristine MAPbI3 PSCs. Most importantly, the solar cell devices based on 2 mol.% MLAI-functionalized perovskite still retain over 90% of the initial performance after being kept in ambient atmosphere for more than 560 h without encapsulation.

DOI： 10.1002/solr.201800275

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Highly accessible hierarchical porous carbon from a bi-functional ionic liquid bulky gel: high-performance electrochemical double layer capacitors 査読有り

Yan Y., Hao X., Gao L., Lin S., Cui N., Li Y., Hao C., Ma T., Wang H.

Journal of Materials Chemistry A 7 ( 44 ) 25297 - 25304 2019年01月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2019 The Royal Society of Chemistry. The π-π interactions between graphene-based lamellar materials hinder their application in high-energy-density electrochemical double-layer capacitors (EDLCs) due to the limited surface area and mismatched pore size with ionic liquid electrolytes. Ionic liquid-graphene bulky gels work well in inhibiting the aggregation of graphene layers. Herein, we report an in situ one-pot process involving the carbonizing of an ionic liquid-based bulky gel to realize an unstacked 2D nanosheet structure and hierarchical porous design. The bulky gel formed by the ionic liquid ensures the stabilization of the laminated structure and regulates the size of the pores in situ. The facile process ensures that the as-synthesized 2D graphene-based porous carbon (GGI) possesses high surface area, dual-doping and micro/mesopores. The highly accessible GGI exhibited good compatibility with the ionic liquid electrolyte EmimTFSI. The constructed symmetric supercapacitors showed a high capacitance of 301 F g-1 at 0.5 A g-1, an excellent rate capability (maintained 192 F g-1 at 10 A g-1) and long cycle life (91.4% performance retention after 10 000 cycles). The high energy density of 100.3 W h kg-1 indicates the successful construction of the EDLC devices.

DOI： 10.1039/c9ta07820g

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Energy- and cost-efficient NaCl-assisted synthesis of MAX-phase Ti<inf>3</inf>AlC<inf>2</inf> at lower temperature 査読有り

Liu A., Yang Q., Ren X., Meng F., Gao L., Gao M., Yang Y., Ma T., Wu G.

Ceramics International 2019年01月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2019 Elsevier Ltd and Techna Group S.r.l. Ti3C2, produced by selective etching of Al from MAX-phase Ti3AlC2, is the most widely studied two-dimensional MXene material in many research fields. However, the synthesis of highly pure Ti3AlC2 typically requires high temperatures, resulting in high-energy demands and high production costs. To reduce the synthesis temperature, we present a new NaCl-assisted approach for synthesizing Ti3AlC2. Ti3AlC2 was synthesized from a Ti2AlC–TiC mixture at 1150 °C under an argon atmosphere in a tube furnace. The successful synthesis of highly pure Ti3AlC2 with an ideal crystal structure and the subsequent preparation of Ti3C2 were confirmed by material characterization and simulation results. This molten-salt-assisted method is more efficient in terms of energy and cost because it lowers the synthesis temperature of MAX-phase Ti3AlC2 by 200 °C. When assisted by appropriate kind or quantity of molten-salt, the synthesis temperature and synthesis time may be further reduced. These findings may provide a new approach for lower-temperature synthesis of other MAX-phase materials and greatly widen the applications of MAX and MXene materials.

DOI： 10.1016/j.ceramint.2019.11.008

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Alternative electrodes for HTMs and noble-metal-free perovskite solar cells: 2D MXenes electrodes 査読有り

Cao J., Meng F., Gao L., Yang S., Yan Y., Wang N., Liu A., Li Y., Ma T.

RSC Advances 9 ( 59 ) 34152 - 34157 2019年01月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2019 The Royal Society of Chemistry. The high cost of hole transporting materials (HTMs) and noble metal electrodes limits the application of perovskite solar cells (PSCs). Carbon materials have been commonly utilized for HTMs and noble-metal-free PSCs. In this paper, a more conductive 2D MXene material (Ti3C2), showing a similar energy level to carbon materials, has been used as a back electrode in HTMs and noble-metal-free PSCs for the first time. Seamless interfacial contact between the perovskite layer and Ti3C2 material was obtained using a simple hot-pressing method. After the adjustment of key parameters, the PSCs based on the Ti3C2 electrode show more stability and higher power conversion efficiencies (PCE) (13.83%, 27% higher than that (10.87%) of the PSCs based on carbon electrodes) due to the higher conductivity and seamless interfacial contact of the MXene electrode. Our work proposes a promising future application for MXene and also a good electrode candidate for HTM and the noble-metal-free PSCs.

DOI： 10.1039/c9ra06091j

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Carbon Counter Electrodes in Dye-Sensitized and Perovskite Solar Cells 査読有り

Wu M., Sun M., Zhou H., Ma J., Ma T.

Advanced Functional Materials 2019年01月

記述言語：英語掲載種別：記事・総説・解説・論説等（学術雑誌）

© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Developing highly effective and stable counter electrode (CE) materials to replace rare and expensive noble metals for dye-sensitized and perovskite solar cells (DSC and PSC) is a research hotspot. Carbon materials are identified as the most qualified noble metal-free CEs for the commercialization of the two photovoltaic devices due to their merits of low cost, excellent activity, and superior stability. Herein, carbonaceous CE materials are reviewed extensively with respect to the two devices. For DSC, a classified discussion according to the morphology is presented because electrode properties are closely related to the specific porosity or nanostructure of carbon materials. The pivotal factors influencing the catalytic behavior of carbon CEs are also discussed. For PSC, an overview of the new carbon CE materials is addressed comprehensively. Moreover, the modification techniques to improve the interfacial contact between the perovskite and carbon layers, aiming to enhance the photovoltaic performance, are also demonstrated. Finally, the development directions, main challenges, and coping approaches with respect to the carbon CE in DSC and PSC are stated.

DOI： 10.1002/adfm.201906451

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Photoinduced polyacrylate based polymer electrolyte for quasi-solid state dye sensitized solar cell application 査読有り

Xu T., Kong D., Xi Z., Huang T., Qin X., Wu H., Kou K., Wang R., Chen L., Ma T.

Engineered Science 7 17 - 25 2019年01月

記述言語：英語掲載種別：研究論文（学術雑誌）

A novel polymer electrolyte poly(NAG) prepared from commercially available transparent photocurable nail art glue NAG is successfully developed for quasi-solid state dye sensitized solar cells (QS-DSSCs) application. The functional component in this poly(NAG) is revealed to be acrylate based group from the Fourier transform infrared spectroscopy (FTIR) measurement. Water contact angles tests showthe poly(NAG) films displayed contact angle less than 20° when dripping liquid electrolyte containing iodide/tri-iodide redox couple. Meanwhile, electrochemical properties of poly(NAG) polymer based electrolyte are thoroughly investigated by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The poly(NAG) polymer electrolyte presents an a highest ionic conductivity of 0.51 mS·cm at room-temperature. Solar cell based on the poly(NAG) electrolyte reaches power conversion efficiency (PCE) of 1.46%. This work demonstrates that this NAG is a novel, cheap, environmental friendly and efficient precursor for preparing polymer electrolyte for DSSCs application. Its abundance can significantly reduce cell fabrication cost, and this work opens a new way to look for promising resource for the application of DSSCs. -1

DOI： 10.30919/es8d768

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85104257604&origin=inward

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