Journal article
Perovskites: Triggering the Passivation Effect of Potassium Doping in Mixed‐Cation Mixed‐Halide Perovskite by Light Illumination (Adv. Energy Mater. 24/2019)
Fei Zheng, Weijian Chen, Tongle Bu, Kenneth P Ghiggino, Fuzhi Huang, Yibing Cheng, Patrick Tapping, Tak W Kee, Baohua Jia, Xiaoming Wen
Advanced Energy Materials | Wiley | Published : 2019
Abstract
In article number 1901016, Baohua Jia, Xiaoming Wen, and co‐workers demonstrate that illumination triggers the passivation effect of potassium doping in perovskite solar cells by forming KBr‐like compounds, eliminating interface trapping and mobile ions, which improves efficiency and stability with negligible current‐voltage hysteresis.