CsPbBr3 Perovskite Quantum Dot Vertical Cavity Lasers with Low Threshold and High Stability

被引:275
|
作者
Huang, Chun-Ying [1 ,4 ]
Zou, Chen [1 ]
Mao, Chenyi [2 ]
Corp, Kathryn L. [2 ]
Yao, Yung-Chi [5 ]
Lee, Ya-Ju [5 ]
Schlenker, Cody W. [2 ]
Jen, Alex K. Y. [2 ,3 ]
Lin, Lih Y. [1 ]
机构
[1] Univ Washington, Dept Elect Engn, Seattle, WA 98195 USA
[2] Univ Washington, Dept Chem, Seattle, WA 98195 USA
[3] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA
[4] Natl Chi Nan Univ, Dept Appl Mat & Optoelect Engn, Nantou 54561, Taiwan
[5] Natl Taiwan Normal Univ, Inst Electroopt Sci & Technol, Taipei 116, Taiwan
来源
ACS PHOTONICS | 2017年 / 4卷 / 09期
关键词
perovskite; CsPbBr3 quantum dots; vertical cavity surface emitting lasers; lasing; threshold; stability; DBR; amplified spontaneous emission (ASE); LIGHT-EMITTING-DIODES; LEAD HALIDE PEROVSKITES; INORGANIC PEROVSKITE; SOLAR-CELLS; STIMULATED-EMISSION; NANOWIRE LASERS; EFFICIENCY; BRIGHT; GREEN; ABSORPTION;
D O I
10.1021/acsphotonics.7b00520
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
All-inorganic cesium lead bromide (CsPbBr3) perovskite quantum dots (QDs) have recently emerged as highly promising solution-processed materials for next-generation light-emitting applications. They combine the advantages of QD and perovskite materials, which makes them an attractive platform for achieving high optical gain with high stability. Here, we report an ultralow lasing threshold (0.39 mu J/cm(2)) from a hybrid vertical cavity surface emitting laser (VCSEL) structure consisting of a CsPbBr3 QD thin film and two highly reflective distributed Bragg reflectors (DBRs). Temperature dependence of the lasing threshold and long-term stability of the device were also characterized. Notably, the CsPbBr3 QDs provide superior stability and enable stable device operation over 5 h/1.8 x 10(7) optical pulse excitations under ambient conditions. This work demonstrates the significant potential of CsPbBr3 perovskite QD VCSELs for highly reliable lasers, capable of operating in the short-pulse (femtosecond) and quasi-continuous-wave (nanosecond) regimes.
引用
收藏
页码:2281 / 2289
页数:9
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