Random lasing in cesium lead iodide (CsPbI3) thin films with no surface passivation

被引：8
|
作者：
Wu, Zong Yu [1 ]
Jian, Bo-Lun [1 ]
Wu, Chun-Sheng [1 ]
Hsu, Hsu-Cheng [1 ]
机构：
[1] Natl Cheng Kung Univ, Dept Photon, Tainan 701, Taiwan
来源：
OPTICS EXPRESS | 2020年 / 28卷 / 15期
关键词：
HALIDE PEROVSKITES CSPBX3; LIGHT; LASERS; PHOTOLUMINESCENCE; NANOCRYSTALS; TRANSPORT; EFFICIENT; BR; CL;
D O I：
10.1364/OE.395821
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report the CsPbI3 random lasing at room temperature fabricated by a chemical deposition method. The CsPbI3 thin films with high crystalline quality have intense PL emission and easily achieve the lasing behavior with the Q-factor value over 7000. The lasing behavior of CsPbI3 thin films can be classified as random lasing by measuring lasing spectra at different collective angles. The fast Fourier transform analysis of the lasing spectra is employed to determine the effective cavity length. Most important of all, the lasing stability investigation shows the prolonged lasing stability over 4.8 X 10(5) laser shots in air. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：21805 / 21813
页数：9
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