doi:info:doi/10.1002/cssc.201800815

Solution‐Processed Air‐Stable Copper Bismuth Iodide for Photovoltaics 利用統計を見る

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アイテムタイプ	学術雑誌論文 = Journal Article
言語	英語
キーワード	copper bismuth iodide, solar cells, solvent vapor annealing, stability, wide bandgap
著者	Hu Zhaosheng Wang Zhen Kapil Gaurav Ma Tingli Iikubo Satoshi Minemoto Takashi Yoshino Kenji Toyoda Taro Shen Qing Hayase Shuzi
著者所属	Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Waka-matsu-ku, Kitakyushu 808-0196, Japan Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Waka-matsu-ku, Kitakyushu 808-0196, Japan Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Waka-matsu-ku, Kitakyushu 808-0196, Japan Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Waka-matsu-ku, Kitakyushu 808-0196, Japan Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Waka-matsu-ku, Kitakyushu 808-0196, Japan Department of Electrical and Electronic Engineering, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga 525-8577, Japan Department of Electrical and Electronic Engineering, University of Miyazaki, Gakuenkibanadainishi, Miyazaki, Miyazaki Prefecture 899-2192, Japan Department of Engineering Science, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan Department of Engineering Science, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2-4 Hibikino, Waka-matsu-ku, Kitakyushu 808-0196, Japan
抄録	Bismuth‐based solar cells have been under intensive interest as an efficient non‐toxic absorber in photovoltaics. Within this new family of semiconductors, we herein report a new, long‐term stable copper bismuth iodide (CuBiI4). A solutionprocessed method under air atmosphere is used to prepare the material. The adopted HI‐assisted dimethylacetamide (DMA) co‐solvent can completely dissolve CuI and BiI3 powders with high concentration compared with other organic solvents. Moreover, the high vapor pressure of tributyl phosphate, selected for the solvent vapor annealing (SVA), enables complete low‐temperature (≤70°C) film preparation, resulting in a stable, uniform, dense CuBiI4 film. The average grain size increases with the precursor concentration, greatly improving the photoluminescence lifetime and hall mobility; a carrier lifetime of 3.03 ns as well as an appreciable hall mobility of 110 cm2V−1s−1 were obtained. XRD illustrates that the crystal structure is cubic (space group Fd3m) and favored in the [111] direction. Moreover, the photovoltaic performance of CuBiI4 was also investigated. A wide bandgap (2.67 eV) solar cell with 0.82% power conversion efficiency is presented, which exhibits excellent long‐term stability over 1008 h under ambient conditions. This air‐stable material may give an application in future tandem solar cells as a stable short‐wavelength light absorber.
雑誌名	ChemSusChem
巻	11
号	17
ページ	2930 - 2935
発行年	2018-06-19
出版者	Wiley-V C H Verlag GMBH
ISSN	1864-5631 1864-564X
書誌レコードID	AA12309282
DOI	info:doi/10.1002/cssc.201800815
権利	Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim
情報源	https://doi.org/10.1002/cssc.201800815
日本十進分類法	543
版	author
査読の有無	yes
資料タイプ	Journal Article
連携ID	7517

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Solution‐Processed Air‐Stable Copper Bismuth Iodide for Photovoltaics 利用統計を見る

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Solution‐Processed Air‐Stable Copper Bismuth Iodide for Photovoltaics 利用統計を見る

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