First-principles prediction into robust high-performance photovoltaic double perovskites A${}_2$SiI${}_6$ (A = K, Rb, Cs)

Qiaoqiao Li, Liujiang Zhou, Yanfeng Ge +5

Despite the exceeding 23\% photovoltaic efficiency achieved in organic-inorganic hybrid perovskite solar cells obtaining, the stable materials with desirable band gap are rare and…