题目： | Amorphous (lysine)2PbI2 layer enhanced perovskite photovoltaics |
作者： | Yehui Wen1,2#, Tianchi Zhang1,2#, Xingtao Wang3#, Tiantian Liu4#, Yu Wang5, Rui Zhang5, Miao Kan6, Li Wan7, Weihua Ning2*, Yong Wang1* & Deren Yang1* |
单位： | 1State Key Laboratory of Silicon and Advanced Semiconductor Materials and School of Materials Science and Engineering, Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, Zhejiang, P. R. China. 2Institute of Functional Nano & Soft Materials, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, P. R. China. 3Huaneng Clean Energy Research Institute, Beijing, P. R. China. 4School of Chemistry and Chemical Engineering, Xi’an University of Architecture and Technology, Xi’an, P. R. China. 5Department of Physics, Chemistry, and Biology (IFM), Linköping University, Linköping, Sweden. 6School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, P. R. China. 7Max Planck Institute of Microstructure Physics, Halle, Germany. |
摘要： | Passivation materials play a crucial role in a wide range of high-efficiency, high stability photovoltaic applications based on crystalline silicon and state-of-the-art perovskite materials. Currently, for perovskite photovoltaic, the mainstream passivation strategies routinely rely on crystalline materials. Herein, we have invented a new amorphous(lysine)2PbI2 layer-enhanced halide perovskite. By utilizing a solid phase reaction between PbI2 and lysine molecule, an amorphous (lysine)2PbI2 layer is formed at surface/grain boundaries in the perovskite films. The amorphous (lysine)2PbI2 with fewer dangling bonds can effectively neutralize surface/interface defects, achieving an impressive efficiency of 26.27% (certified 25.94%). Moreover, this amorphous layer not only reduces crystal lattice stress but also functions as a barrier against the decomposition of organic components, leading to suppressed de-structuring of perovskite and highly stable perovskite solar cells. |
影响因子： | 14.7 |
分区情况： | 一区 |
链接： | https://doi.org/10.1038/s41467-024-51551-y 责任编辑：郭佳 |