研究者詳細 - 馬　廷麗

論文 - 馬　廷麗

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Aurivillius Halide Perovskite: A New Family of Two-Dimensional Materials for Optoelectronic Applications 査読有り

Zhao S., Lan C., Li H., Zhang C., Ma T.

Journal of Physical Chemistry C 124 ( 3 ) 1788 - 1793 2020年01月

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（学術雑誌）

Layered perovskites have attracted considerable attention in optoelectronic applications because of their excellent electronic properties and stability. In this work, the quasi-2D Aurivillius halide perovskites are investigated using density functional theory. The single-layer Aurivillius perovskite Ba2PbI6 is predicted to have a direct band gap of 1.89 eV, which is close to that of the Ruddlesden-Popper perovskite Cs2PbI4. The electronic structures near the Fermi level are mainly governed by the [PbX6] octahedra, which leads to electronic properties similar to that of Cs2PbI4. Decomposition energies reveal that these Aurivillius perovskites exhibit thermal instability. However, increasing the number of the [PbX6] octahedra layer can enhance the stability and reduce the band gap. Our results indicated that for n 5, it is possible to synthesize the thermally stable Cl-based Aurivillius perovskite Ba2Csn-1PbnCl3n+3. Bi- A nd In-based Aurivillius perovskites are also calculated to evaluate the Pb-free alternatives. These calculations can serve as a theoretical support in exploring novel layered perovskites for optoelectronic applications.

DOI： 10.1021/acs.jpcc.9b08450

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Stability Improvement of Perovskite Solar Cells by Adding Sb-Xanthate to Precursor Solution 査読有り

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 2020年01月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 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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Synthesis of Sb(V) Complexes with Pyridyl Cations and Application for Lead-free Perovskite Solar Cells 査読有り

Xu Zhenhua, Zhang Chu, Yu Fengyang, Kamata Yusuke, Hayase Shuzi, Ma Tingli

Chemistry Letters ( 公益社団法人日本化学会 ) 49 ( 8 ) 944 - 946 2020年01月

記述言語：英語掲載種別：研究論文（学術雑誌）

<p>Lead halide perovskite has emerged as a promising photovoltaic material due to its excellent power conversion efficiency (PCE). However, the toxicity problem of lead-based perovskite hampers the commercialization of perovskite solar cells. Here, we develop several Sb(V) complexes with pyridyl cations and serve as absorber layer for lead-free perovskite solar cells. The designed complexes were based on 4-<i>tert</i>-butylpyridine (<i>t</i>BP) and <i>N</i>-ethylpyridinium (<i>N</i>-EtPy) cations with bandgaps of 2.01 eV and 1.95 eV, which showed their potential for solar cells and optoelectronic applications. We also found a chemical rule for stable Sb complexes in terms of the bond connectivity of pnictogen-antimony. Initial studies produce a solar cell with a PCE of 0.9% and offer inspiration for further exploration of environment-friendly perovskite families.</p>

DOI： 10.1246/cl.200208

その他リンク： https://ci.nii.ac.jp/naid/130007884714

Recent Progress in MXene-Based Materials: Potential High-Performance Electrocatalysts 査読有り

Liu A., Liang X., Ren X., Guan W., Gao M., Yang Y., Yang Q., Gao L., Li Y., Ma T.

Advanced Functional Materials 2020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）

© 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim The family of transition metal carbides, nitrides, and carbonitrides (collectively called MXenes) has been a thriving field since the first invention of Ti3C2Tx (MXene) in 2011. MXene is a new type of nanometer 2D sheet material, which exhibits great application potentials in various fields due to its multiple advantages such as high specific surface area, good electrical conductivity, and high mechanical strength. Electrocatalysis is regarded as the core of future clean energy conversion technologies, and MXene-based materials provide inspiration for the design and preparation of electrocatalysts with high activity, high selectivity, and long loading life time. The applications of MXene-based materials in electrocatalysis, including hydrogen evolution reaction, nitrogen reduction reaction, oxygen evolution reaction, oxygen reduction reaction, carbon dioxide reduction reaction, and methanol oxidation reaction are summarized in this review. As a crucial session regarding experiments, the current safer and more environmentally friendly preparation methods of MXene are also discussed. Focusing on the materials design and enhancement methods, the key challenges and opportunities for MXene-based materials as a next-generation platform in both fundamental research and practical electrocatalysis applications are presented. This account serves to promote future efforts toward the development of MXenes and related materials in the electrocatalysis applications.

DOI： 10.1002/adfm.202003437

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Current Progress of Electrocatalysts for Ammonia Synthesis Through Electrochemical Nitrogen Reduction Under Ambient Conditions 査読有り

Liu A., Yang Y., Ren X., Zhao Q., Gao M., Guan W., Meng F., Gao L., Yang Q., Liang X., Ma T.

ChemSusChem 2020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）

© 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Ammonia, one of the most important chemicals and carbon-free energy carriers, is mainly produced by the traditional Haber–Bosch process operated at high pressure and temperature, which results in massive energy consumption and CO2 emissions. Alternatively, the electrocatalytic nitrogen reduction reaction to synthesize NH3 under ambient conditions using renewable energy has recently attracted significant attention. However, the competing hydrogen evolution reaction (HER) significantly reduces the faradaic efficiency and NH3 production rate. The design of high-performance electrocatalysts with the suppression of the HER for N2 reduction to NH3 under ambient conditions is a crucial consideration for the development of electrocatalytic NH3 synthesis with high FE and NH3 production rate. Five kinds of recently developed electrocatalysts classified by their chemical compositions are summarized, with particular emphasis on the relationship between their optimal electrocatalytic conditions and NH3 production performance. Conclusions and perspectives are provided for the future design of high-performance electrocatalysts for electrocatalytic NH3 production. The Review can give practical guidance for the design of effective electrocatalysts with high FE and NH3 production rates.

DOI： 10.1002/cssc.202000487

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Comparison of Physical Isolation on Large Active Area Perovskite Solar Cells 査読有り

Gao L., Yan Y., Li Y., Ma T.

Chemical Research in Chinese Universities 2020年01月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2020, Jilin University, The Editorial Department of Chemical Research in Chinese Universities and Springer-Verlag GmbH. To reduce the quadratic scaling of the series resistance(Rs) and sheet resistance(Rst) of the devices, physical isolation of the large area devices into small pieces has been proven to be a reliable and cost-efficient patterning technique. In this paper, we got an interesting result that the physical isolation did not show obvious effect on the photovoltaic performance of perovskite solar cells(PSCs) when fixing the active area. Three different isolation types, unetched ITO, etched ITO, and laser etching whole devices, have been induced to investigate the physical isolation roles. The results show that the electrons and holes could be collected efficiently in active area for all the isolation types. The proposed mechanism illustrates that the nonradiative recombination and recombination of electrons and hole in inactive area do not influence the performance of devices. This work may open a new way for the commercialization of PSCs by reducing the complex process and the etching costs.

DOI： 10.1007/s40242-020-0060-z

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Current Progress in Solid-State Electrolytes for Dye-Sensitized Solar Cells: A Mini-Review 査読有り

Wang N., Hu J., Gao L., Ma T.

Journal of Electronic Materials 2020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）

© 2020, The Minerals, Metals & Materials Society. Low-cost and high-performance dye-sensitized solar cells (DSSCs) are considered promising candidates for commercial application. As one of the crucial components, electrolytes are considered the limiting factor for long-term DSSC stability. As alternative materials, solid-state electrolytes have been used in DSSCs, which may solve the problem of liquid electrolytes, such as leakage and volatilization. In this review, we define solid-state electrolytes as inorganic hole transport materials (HTMs), organic HTMs, ionic conductive polymer electrolytes, and ionic liquid polymer electrolytes according to the different types of carriers and summarize the latest development trends of these electrolytes. We discuss in detail the mechanism of solid-state dye-sensitized solar cells (ssDSSCs), including the hole transfer process at the dye/hole-conductor interface and factors that reduce the efficiency of ssDSSCs, and summarize several methods to improve the efficiency and long-term stability of ssDSSCs. These may facilitate the research and development of electrolytes for ssDSSCs.

DOI： 10.1007/s11664-020-08483-2

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Synthesis of monodispersed silver particles: Synthetic techniques to control shapes, particle size distribution and lightness of silver particles 査読有り

Sannohe K., Ma T., Hayase S.

Advanced Powder Technology 30 ( 12 ) 3088 - 3098 2019年12月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2019 The Society of Powder Technology Japan The purpose of this paper is to give process for preparing monodispersed silver particles with round shape having aspect ratio of 1, because the shape is suitable for preparing silver grids with fine pattern size. We found that the combination of gelatin and hydrazine gave the monodispersed silver particles with the aspect ratio of 1. Presence of the high molecular compounds is crucial probably because they are adsorbed on the surface of growing silver particles and control the uniform crystal growth. In addition, the relationship between these reaction conditions and the particle shape are discussed in detail.

DOI： 10.1016/j.apt.2019.09.015

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Delocalized molecule surface electronic modification for enhanced performance and high environmental stability of CsPbI<inf>2</inf>Br perovskite solar cells 査読有り

Wang Z., Baranwal A., Akmal kamarudin M., Zhang P., Kapil G., Ma T., Hayase S.

Nano Energy 66 2019年12月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2019 Elsevier Ltd All-inorganic perovskites have drawn tremendous attentions in view of their superb thermal stability. However, unavoidable defects near the perovskite surface seriously hampers carrier transport and easily results in ion accumulation at the interface of perovskite layer and charge transport layer. Herein, delocalized thiazole and imidazole derivatives iodide salts functionalized on perovskite surface have been investigated comprehensively. These two salts post-treatment on perovskite could efficiently passivate traps arising from Cs+ or I− vacancies. Additionally, these highly п-conjugated delocalized molecules can contribute to the efficient charge transport and prevent ions accumulation at the interface. As a result, sulfur-contained aminothiazolium iodide (ATI) post-treated CsPbI2Br devices showed simultaneous enhanced current density and voltage due to its higher interaction with perovskite lattice, this led to a champion efficiency of 13.91% with superb fill factor of more than 80%, which exhibited dramatic enhancement compared with the control samples (10.12%). Furthermore, surface passivation with delocalized molecules could effectively stabilize CsPbI2Br phase at room temperature or 80 °C annealing in ambient condition (65% RH). Equally important, this surface passivation allowed competitive efficiency of 11.26% with a large-area device (1.00 cm2). This high kill tolerant approach provide a new route to fabricate inorganic perovskite devices with higher efficiency and stability.

DOI： 10.1016/j.nanoen.2019.104180

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A black phosphorus/Ti<inf>3</inf>C<inf>2</inf> MXene nanocomposite for sodium-ion batteries: A combined experimental and theoretical study 査読有り

Li H., Liu A., Ren X., Yang Y., Gao L., Fan M., Ma T.

Nanoscale 11 ( 42 ) 19862 - 19869 2019年11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. A black phosphorus (BP)/Ti3C2 MXene composite was prepared by compositing small BP nanoparticles with exfoliated Ti3C2 layers. When used as an anode for sodium-ion batteries, the BP/Ti3C2 composite electrode exhibited higher specific capacity and better electrode stability than a BP electrode and a Ti3C2 electrode. The results of experimental and density functional theory (DFT) calculations illustrated that the synergy of BP and Ti3C2 based on a stable interfacial interaction simultaneously reduces the resistances from both electron and Na+ transport, resulting in the impressive electrochemical performance of the BP/Ti3C2 composite in sodium-ion batteries. The synthesis process and research concept could also be extended for further application of MXene materials and studies on sodium-ion batteries.

DOI： 10.1039/c9nr04790e

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A novel strategy to synthesize CoMoO<inf>4</inf> nanotube as highly efficient oxygen evolution reaction electrocatalyst 査読有り

Li Y., Wang C., Cui M., Chen S., Ma T.

Catalysis Communications 131 2019年11月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2019 Elsevier B.V. Designing efficient oxygen evolution reaction (OER) electrocatalysts is crucial for practical applications in water splitting and metal-air battery devices. Special structures of materials often bring in unprecedented catalytic activity. Herein, we first report the synthesis of CoMoO4 nanotube by using MoO3@ZIF-67 nanorod. The CoMoO4 nanotube shows high OER activity with a low overpotential of 315 mV delivering a current density of 10 mA cm−2. The electro-catalytic activity surpasses that of many Co and Mo-based catalysts. Furthermore, the strategy presented here is facile, and can be extended to the synthesis of other Mo-based nanotube materials for energy storage and conversion.

DOI： 10.1016/j.catcom.2019.105800

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La-doped SnO<inf>2</inf> as ETL for efficient planar-structure hybrid perovskite solar cells 査読有り

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

Organic Electronics: physics, materials, applications 73 62 - 68 2019年10月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2019 Elsevier B.V. SnO2 has attracted considerable attention in perovskite solar cells (PSCs) due to its excellent optical and electrical properties. However, a poor surface morphology, specifically with the presence of pinholes after the annealing process, limits its application in PSCs. To overcome the drawback of tin oxide, lanthanum (La) is herein first to be doped into the SnO2 layer, which is able to alleviate the SnO2 crystal aggregation and produce full-coverage and a uniform film. In addition, La:SnO2 can effectively reduce the band offset of the SnO2 layer, which results in the high Voc of 1.11 V. Systematic analyses revealed that the La:SnO2 layer enhances the electron extraction and suppresses charge recombination, leading to the power conversion efficiency (PCE) enhancement from 14.24% to 17.08%.

DOI： 10.1016/j.orgel.2019.03.053

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Bifunctional Dye Molecule in All-Inorganic CsPbIBr<inf>2</inf> Perovskite Solar Cells with Efficiency Exceeding 10% 査読有り

Yang S., Guo Z., Gao L., Yu F., Zhang C., Fan M., Wei G., Ma T.

Solar RRL 3 ( 9 ) 2019年09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 Inorganic lead halide perovskites are attracting increasing attention due to their much better thermal stability than the organic–inorganic hybrid perovskite materials. Thus, the low power conversion efficiency (PCE) is a key issue for the inorganic lead halide perovskite solar cells (PSCs). This is mainly due to their wider bandgap and larger energy loss (Eloss) in the devices. Herein, for solving this issue, a dye molecule-assisted engineering using the dye of 5,15-bis(2,6-dioctoxyphenyl)-10-(bis(4-hexylphenyl)-amino-20-4-carboxyphenylethynyl)porphyrinato]zinc(II) (YD2-o-C8) is demonstrated. Results indicate that this molecule has a bifunctional effect, not only as a co-sensitization layer for CsPbIBr2 with broader absorption spectrum but also reduces the Eloss by interface passivation. Specifically, the light absorption range of the photoactive layer is broadened from 600 to nearly 680 nm. At the same time, the interfacial charge recombination is highly reduced. After optimizing, the champion PCE is enhanced from 7.02% to 10.13%, and record-high open-circuit voltage (VOC) of 1.37 V and short-circuit currents (JSC) of 12.05 mA cm−2 are achieved. This study opens a simple and efficient way to improve the efficiency of inorganic PSCs.

DOI： 10.1002/solr.201900212

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Large-Area Perovskite Solar Cells 査読有り

Yan Y., Cao J., Meng F., Wang N., Gao L., Ma T.

Progress in Chemistry 31 ( 7 ) 1031 - 1043 2019年07月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2019, Editorial Office of Progress in Chemistry. All right reserved. Perovskite solar cells have been paid much attention due to their high efficiency, low cost, suitable to flexible devices. The recent research progress of large-area perovskite solar cells, including their current development, remained issues, and fabricating techniques are systematically reviewed. Furthermore, the approaches to improve power conversion efficiency and stability are summarized. Finally, the application challenges of large-area perovskite solar cells are prospected.

DOI： 10.7536/PC181202

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Niobium Incorporation into CsPbI<inf>2</inf>Br for Stable and Efficient All-Inorganic Perovskite Solar Cells 査読有り

Guo Z., Zhao S., Liu A., Kamata Y., Teo S., Yang S., Xu Z., Hayase S., Ma T.

ACS Applied Materials and Interfaces 11 ( 22 ) 19994 - 20003 2019年06月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2019 American Chemical Society. All-inorganic perovskites are attracting increasing attention due to their superior thermal stability than that of the traditional CH3NH3PbI3, while their inferior phase stability in ambient conditions is still an unsolved issue. Here, for the first time, we report the incorporation of niobium (Nb5+) ions into the CsPbI2Br perovskite. Results indicate that Nb5+ can effectively stabilize the photoactive α-CsPbI2Br phase by the possible substitution of Pb2+. With 0.5% Nb doping, the carbon electrode-based all-inorganic perovskite solar cells achieved a high photoconversion efficiency value of 10.42%, 15% higher than that of the control device. The Nb5+ incorporation reduces the charge recombination in the perovskite, leading to a champion Voc value of 1.27 V and a negligible hysteresis effect. This work explicates the high compatibility of all-inorganic perovskite materials and unlocks the opportunities for the use of high-valence ions for perovskite property modification.

DOI： 10.1021/acsami.9b03622

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Favorable growth of well-crystallized layered hybrid perovskite by combination of thermal and solvent assistance 査読有り

Xue C., Shi Y., Zhang C., Lv Y., Feng Y., Tian W., Jin S., Ma T.

Journal of Power Sources 422 156 - 162 2019年05月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2019 In recent years, attention is increasingly paid to developing layered two-dimensional perovskites due to their superior environmental stability compare with their three-dimensional analogues. However, two-dimensional perovskite based solar cells usually give unsatisfactory photovoltaic performance due to large numbers of defects in the process of crystallinity. Many groups investigate multiple approaches to improve the crystalline quality so far. Here, we systematically investigate the influence of temperature on two-dimensional (PEA) 2 (MA) 2 Pb 3 I 10 perovskite films crystallinity based on hot-casting and post-annealing. The crystallization of (PEA) 2 (MA) 2 Pb 3 I 10 in the case of hot-casting has better crystallinity than post-annealing and discover the thermal annealing and solvent-assisted mass transfer are very important in the process of crystallization based on two-dimensional perovskite. As a result, the devices obtain a highest power conversion efficiency of 5.57% at 100 ° C (hot-casting) by optimizing heating temperature of the substrate and the hot-casting two-dimensional (PEA) 2 (MA) 2 Pb 3 I 10 films and devices display superior ambient stability. This work provides an important reference for further improve the crystallization of two-dimensional perovskite film.

DOI： 10.1016/j.jpowsour.2019.03.037

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Electrostatic self-assembly of 2D delaminated MXene (Ti <inf>3</inf> C <inf>2</inf> ) onto Ni foam with superior electrochemical performance for supercapacitor 査読有り

Guo J., Zhao Y., liu A., Ma T.

Electrochimica Acta 305 164 - 174 2019年05月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2019 Elsevier Ltd The existence of the oxygen-containing functional groups on MXene surface makes it a potential electrode material in supercapacitor based on a redox mechanism. However, the irreversible stacking of MXenes will lead to an insufficient utilization of these functional groups. To solve this problem, we fabricated a composite electrode comprised of 2D delaminated Ti 3 C 2 sheets (d-Ti 3 C 2 ) and 3D Ni foam (NF) by electrostatic self-assembly. In this electrode, d-Ti 3 C 2 nanosheets are adsorbed on the surface of 3D Ni foam skeleton structure, eliminating the need for insulative polymer binders. The self-assembly strategy endows d-Ti 3 C 2 /NF composites with unique 2D/3D structure which possesses the merits of excellent conductivity, sufficient active sites, high charge transfer efficiency and short ions diffusion path. As a result, the d-Ti 3 C 2 /NF composite electrode exhibits a high specific capacitance up to 654 F g −1 at 1 A g −1 and good cycling stability. An asymmetrical supercapacitor with d-Ti 3 C 2 /NF composite as a positive electrode, bulk Ti 3 C 2 (b-Ti 3 C 2 ) as a negative electrode and 6 M KOH as electrolyte, exhibits a maximum energy density of 18.1 Wh kg −1 (at 397.8 W kg −1 ) and excellent cycling stability (80.6% after 5000 cycles). The results indicate that d-Ti 3 C 2 /NF composite is a promising electrode material for practical energy storage devices.

DOI： 10.1016/j.electacta.2019.03.025

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Enhancing oxygen evolution reaction electrocatalytic performance with vanadium-doped Co/CoO encapsulated in carbon nanorod 査読有り

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

Inorganic Chemistry Communications 103 1 - 5 2019年05月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2019 Elsevier B.V. Oxygen evolution reaction (OER) plays a key role in electrochemical splitting of water and it is urgent to develop high-performance and cost-effective OER catalysts. In this work, we report the synthesis of V-Co/CoO@C nanorod as highly efficient OER catalysts. The V 2 O 5 nanowire and metal organic framework composite leads to the successful preparation of the catalyst. The V 2 O 5 nanowire not only induces the formation of Co/CoO species, but also facilitates uniform V doping. When used as OER catalyst, the V-Co/CoO@C nanorod only needs a low overpotential of 320 mV to achieve a high current density of 10 mA·cm −2 .

DOI： 10.1016/j.inoche.2019.02.041

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Xanthate-induced sulfur doped all-inorganic perovskite with superior phase stability and enhanced performance 査読有り

Wang Z., Baranwal A., kamarudin M., Ng c., Pandey M., Ma T., Hayase S.

Nano Energy 59 258 - 267 2019年05月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2019 Elsevier Ltd Although the efficiency of perovskite-based solar cell has boosted up to 23%, their stability hinders the further development due to the volatile nature of organic components in conventional organic-inorganic hybrid perovskites. All-inorganic perovskites have been reported to achieve enhanced thermal stability. Herein we applied xanthate in all-inorganic perovskite to realize the sulfur-doped CsPbIBr 2 for superior phase stability. The additive cesium xanthate (CsXth) could be decomposed into cesium sulfides during annealing process. The divalent S 2- lies in the interstices of perovskite lattice and strongly coordinates with CsPbIBr 2 to stabilize the ɑ-phase, as a result, greatly enhanced stability was achieved at ambient air with 65% relative humidity (RH) compared with the reference film. Moreover, we obtained a champion efficiency of 9.78% with a high open-circuit voltage (V oc ) of 1.30 V based on 5% CsXth-CsPbIBr 2 under humid air. Performance of sulfur-doped perovskite device shows almost no decay in 10 h under humid air with 65% RH without encapsulation. These advantages provide an efficient way to prepare more efficient and superior stable perovskite device, which is beneficial toward commercialization in the future.

DOI： 10.1016/j.nanoen.2019.02.049

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Ultra-low-cost coal-based carbon electrodes with seamless interfacial contact for effective sandwich-structured perovskite solar cells 査読有り

Meng F., Gao L., Yan Y., Cao J., Wang N., Wang T., Ma T.

Carbon 145 290 - 296 2019年04月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2019 Elsevier Ltd The high cost of hole transporting materials (HTMs) and noble metallic electrodes limits the applications of perovskite solar cells (PSCs). Carbon materials, including carbon nanotube, graphene, and carbon paste, have been utilized for HTMs and noble-metal-free PSCs. Unlike other carbon materials, coal has extensive sources and lower price. A simple preparation process and an effective sandwich structure for the use of this material in PSCs were obtained by hot-pressing method. After the key parameters were adjusted, the power conversion efficiencies are 10.87% (0.3 cm2) and 8.72% (1 cm2). Therefore, devices with coal-based carbon electrodes have better stability than conventional devices. Our work proposes a promising future for the commercialization of low-cost and highly stable PSCs.

DOI： 10.1016/j.carbon.2019.01.047

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85060905070&origin=inward

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