Xiaomin Liu , Jiahao Zhang , Haifei Wang , Yanfeng Miao , Ting Guo , Luis K. Ono , Shuai Yuan , Yao Wang , Penghui Ji , Haoran Chen , Congyang Zhang , Tongtong Li , Chenfeng Ding , Silvia Mariotti , Xiaomin Huo , Ilhem-Nadia Rabehi , Hengyuan Wang , Yixin Zhao , Yabing Qi
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引用次数: 0
Abstract
Humidity can accelerate degradation by promoting phase transitions and enhancing the defect generation in perovskites. This poses a significant challenge for the upscaling of perovskite solar modules under ambient conditions, especially for moisture-sensitive inorganic CsPbI3 perovskite. Herein, we report an environmental moisture-induced chemical passivation of the CsPbI3 perovskite surface by the hydrolysis of perfluorobutanesulfonyl chloride (PFSC). The in situ generated perfluorobutanesulfonic acid (PFS) effectively reduces defect density and improves the interfacial contact, leading to CsPbI3-based devices with suppressed non-radiative recombination losses. Our in situ surface-modified PFS-CsPbI3 perovskite solar modules with an aperture area of 12.82 cm2 deliver a state-of-the-art certified aperture area efficiency of 18.22%.
期刊介绍:
Joule is a sister journal to Cell that focuses on research, analysis, and ideas related to sustainable energy. It aims to address the global challenge of the need for more sustainable energy solutions. Joule is a forward-looking journal that bridges disciplines and scales of energy research. It connects researchers and analysts working on scientific, technical, economic, policy, and social challenges related to sustainable energy. The journal covers a wide range of energy research, from fundamental laboratory studies on energy conversion and storage to global-level analysis. Joule aims to highlight and amplify the implications, challenges, and opportunities of novel energy research for different groups in the field.