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A crystal capping layer for formation of black-phase FAPbI3 perovskite in humid air.
Zou, Yu; Yu, Wenjin; Guo, Haoqing; Li, Qizhi; Li, Xiangdong; Li, Liang; Liu, Yueli; Wang, Hantao; Tang, Zhenyu; Yang, Shuang; Chen, Yanrun; Qu, Bo; Gao, Yunan; Chen, Zhijian; Wang, Shufeng; Zhang, Dongdong; Chen, Yihua; Chen, Qi; Zakeeruddin, Shaik M; Peng, Yingying; Zhou, Huanping; Gong, Qihuang; Wei, Mingyang; Grätzel, Michael; Xiao, Lixin.
Afiliação
  • Zou Y; State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, P. R. China.
  • Yu W; State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, P. R. China.
  • Guo H; State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, P. R. China.
  • Li Q; International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, P. R. China.
  • Li X; State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, P. R. China.
  • Li L; School of Materials Science and Engineering, Peking University, Beijing 100871, P. R. China.
  • Liu Y; State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, P. R. China.
  • Wang H; State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, P. R. China.
  • Tang Z; State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, P. R. China.
  • Yang S; State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, P. R. China.
  • Chen Y; School of Materials Science and Engineering, Peking University, Beijing 100871, P. R. China.
  • Qu B; State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, P. R. China.
  • Gao Y; State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, P. R. China.
  • Chen Z; State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, P. R. China.
  • Wang S; State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, P. R. China.
  • Zhang D; Key Laboratory of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China.
  • Chen Y; Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
  • Chen Q; Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
  • Zakeeruddin SM; Laboratory of Photonics and Interfaces, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland.
  • Peng Y; International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, P. R. China.
  • Zhou H; School of Materials Science and Engineering, Peking University, Beijing 100871, P. R. China.
  • Gong Q; State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, P. R. China.
  • Wei M; Laboratory of Photonics and Interfaces, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland.
  • Grätzel M; Laboratory of Photonics and Interfaces, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland.
  • Xiao L; State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, P. R. China.
Science ; 385(6705): 161-167, 2024 Jul 12.
Article em En | MEDLINE | ID: mdl-38991067
ABSTRACT
Black-phase formamidinium lead iodide (α-FAPbI3) perovskites are the desired phase for photovoltaic applications, but water can trigger formation of photoinactive impurity phases such as δ-FAPbI3. We show that the classic solvent system for perovskite fabrication exacerbates this reproducibility challenge. The conventional coordinative solvent dimethyl sulfoxide (DMSO) promoted δ-FAPbI3 formation under high relative humidity (RH) conditions because of its hygroscopic nature. We introduced chlorine-containing organic molecules to form a capping layer that blocked moisture penetration while preserving DMSO-based complexes to regulate crystal growth. We report power conversion efficiencies of >24.5% for perovskite solar cells fabricated across an RH range of 20 to 60%, and 23.4% at 80% RH. The unencapsulated device retained 96% of its initial performance in air (with 40 to 60% RH) after 500-hour maximum power point operation.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article
Texto completo
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PubMed Links
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article