Surface in situ reconstruction of inorganic perovskite films enabling long carrier lifetimes and solar cells with 21% efficiency

• Published in: Nature energy Vol. 8; no. 4; pp. 372 - 380
• Main Authors: Chu, Xinbo, Ye, Qiufeng, Wang, Zhenhan, Zhang, Chen, Ma, Fei, Qu, Zihan, Zhao, Yang, Yin, Zhigang, Deng, Hui-Xiong, Zhang, Xingwang, You, Jingbi
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 01.04.2023; Nature Publishing Group
• Subjects: 639/301/1005/1007; 639/301/299; 639/301/299/946; Carrier lifetime; Cesium fluorides; Current carriers; Economics and Management; Efficiency; Energy; Energy gap; Energy loss; Energy Policy; Energy Storage; Energy Systems; Fluorine; Heterojunctions; Open circuit voltage; Perovskites; Photovoltaic cells; Photovoltaics; Radiative recombination; Reaction mechanisms; Recombination; Reconstruction; Renewable and Green Energy; Solar cells; Solar energy; Surface defects
• ISSN: 2058-7546; 2058-7546
• DOI: 10.1038/s41560-023-01220-z

All-inorganic perovskites are emerging as excellent photovoltaic candidates for single-junction or tandem solar cells. However, large energy loss due to non-radiative recombination is the main constraint for performance enhancement. Accordingly, we developed a surface in situ reconstruction (SISR) s...