![Low‐Temperature Processed WO
<sub/>x</sub>
as Electron Transfer Layer for Planar Perovskite Solar Cells Exceeding 20% Efficiency]()
Low‐Temperature Processed WO
<sub/>x</sub>
as Electron Transfer Layer for Planar Perovskite Solar Cells Exceeding 20% EfficiencyChen, Cong; Jiang, Yue; Wu, Yehui; Guo, Jiali; Kong, Xiangyu; Wu, Xiayan; Li, Yuzhu; Zheng, Dongfeng; Wu, Sujuan; Gao, Xingsen; Wang, Qianming; Zhou, Guofu; Chen, Yiwang; Liu, Jun-Ming; Kempa, Krzysztof; Gao, Jinwei · Solar RRL · 2020