First-Principles Theory Investigation on Structural and Photoelectronic Properties of Perovskites:Trigonal versus Hexagonal HC(NH 2) 2PbI 3
Zhao Zigang, Lu Xiaoqing, Li Ke, Wei Shuxian, Liu Xuefeng, Niu Kai, Guo Wenyue
Acta Chim. Sinica . 2016, (12): 1003 -1008 .  DOI: 10.6023/A16080437