Random lasing in cesium lead bromine perovskite quantum dots film

被引：18
作者：
Fan, Ting [1 ]
Lu, Jiantao [2 ]
Chen, Yihong [1 ]
Yuan, Wenxiong [1 ]
Huang, Yongfa [1 ]
机构：
[1] Foshan Univ, Sch Mat Sci & Energy Engn, Foshan 528000, Peoples R China
[2] Foshan Univ, Sch Phys & Optoelect Engn, Foshan 528000, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2019年 / 30卷 / 02期
基金：
中国国家自然科学基金;
关键词：
INORGANIC PEROVSKITE; HALIDE PEROVSKITES; LIGHT; EFFICIENCY;
D O I：
10.1007/s10854-018-0377-2
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Cesium lead bromine (CsPbBr3) perovskite colloidal quantum dots were prepared by hot injection method. The obtained samples were single crystal nanocubes with the average side length of 9-10nm. The drop-casting film of the quantum dots showed obvious green stimulated emission under 400nm femtosecond laser pumping with the full width at half maximum of about 4nm. The laser threshold was derived to be about 471 mu J/cm(2). The laser behavior of CsPbBr3 quantum dots films could be attributed to random lasing modes which realized in weak scattering regimes.
引用
收藏
页码：1084 / 1088
页数：5
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