X Sun, M Li, B Yao, Y Li, Z Ding, D Ma… - ACS Applied Energy …, 2025 - ACS Publications
As is well-known, the lower open-circuit voltage (V OC) and fill factor (FF) are two major
reasons for the lower efficiency of Cu2ZnSn (S, Se) 4 (CZTSSe) solar cells. K-doping has …