Strong self-trapping by deformation potential limits photovoltaic performance in bismuth double perovskite

Bo Wu^*, Weihua Ning, Qiang Xu, Manukumara Manjappa, Minjun Feng, Senyun Ye, Jianhui Fu, Stener Lie, Tingting Yin, Feng Wang, Teck Wee Goh, Padinhare Cholakkal Harikesh, Yong Kang Eugene Tay, Ze Xiang Shen, Fuqiang Huang, Ranjan Singh, Guofu Zhou^*, Feng Gao^*, Tze Chien Sum^*