DOI: 10.1039/d6ra02463g ISSN: 2046-2069
Comparative performance analysis of lead-free perovskite solar cells based on FASnI 3 , CsSnI 3 , KGeCl 3
Zhongjie Wang, Yuhao Wang, Benxiong Hu, Chenxi Zheng, Jian Qu, Yunxiang Zhang, Qinfang ZhangComparative evaluation of four lead-free perovskites finds FASnI 3 best (PCE ∼ 16.7%). Optimizing TiO 2 ETL (thickness, doping, defect density) boosts PCE to 19.3%, with ETL quality crucially outperforming HTL optimization.