外文题目: Perovskite CsPb2Br5 Microplate Laser with Enhanced Stability and Tunable Properties
作者: Tang, Xiaosheng; Hu, Zhiping; Yuan, Wei; Hu, Wei; Shao, Haibing; Han, Dongjia; Zheng, Junfeng; Hao, Jiongyue; Zang, Zhigang; Du, Juan; Leng, Yuxin; Fang, Liang; Zhou, Miao
刊名: Adv. Opt. Mater.
年: 2017 卷: 5 期: 3 文章编号：1600788
英文关键词:

CESIUM LEAD HALIDE; NANOCRYSTAL QUANTUM DOTS; LIGHT-EMITTING-DIODES; AUGER RECOMBINATION; COLLOIDAL NANOCRYSTALS; STIMULATED-EMISSION; NANOPLATELETS; ABSORPTION; CRYSTALS; EXCHANGE
英文摘要:
Recent years have witnessed a surge of research in all-inorganic perovskite nanomaterials for solar cells and light emitting diodes due to their higher chemical stability compared to their hybrid organic-inorganic counterparts. Herein, by combining material synthesis, characterization, optical measurement, and density functional theory based first principles calculation, a type of all-inorganic perovskite CsPb2Br5 microplate with superior crystallinity, enhanced stability, and tunable optical properties is reported. With a robust band gap of approximate to 2.44 eV, CsPb2Br5 microplate exhibits 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. These results are expected to shed new light on future design and development of novel perovskite nanomaterials for optoelectronic devices.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1002/adom.201600788


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