Perovskite CsPb2Br5 Microplate Laser with Enhanced Stability and Tunable Properties
Xiaosheng Tang, Zhiping Hu, Wei Yuan, Wei Hu, Haibing Shao, Dongjia Han, Junfeng Zheng, Jiongyue Hao, Zhigang Zang, Juan Du, Yuxin Leng, Liang Fang and Miao Zhou
Version of Record online: 18 NOV 2016 | DOI: 10.1002/adom.201600788
A new type of all-inorganic perovskite CsPb2Br5 microplate with superior crystallinity, enhanced stability, and tunable optical properties is reported by combining experimental and theoretical studies. It exhibits surprisingly low-threshold amplified spontaneous emission under both one- and two-photon excitation, which is related to its unique spatially distinguished valence/conduction band edge states originating from the intrinsic sandwiched structure.