Wavelength tunable single-mode lasing from cesium lead halide perovskite microwires

Wavelength tunable single-mode lasing from cesium lead halide perovskite microwires

Cesium lead halide perovskites have shown great potential applications in photoelectric devices because of their high quantum efficiency, good stability, and tunable bandgap. Herein, we prepared CsPbBr3 microwires with a high crystal quality, smooth surface, and rectangular cross section via the sol...

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Veröffentlicht in:Applied physics letters 2021-02, Vol.118 (7), Article 071103
Hauptverfasser: Li, Fangtao, Yang, Zheng, Jiang, Mingming, Wang, Chunfeng, Xi, Jianguo, Zhang, Yufei, Pan, Caofeng, Lu, Junfeng, Wang, Rongming
Format: Artikel
Sprache:eng
Schlagworte:
Anion exchanging
Applied physics
Cesium
Lasing
Lead compounds
Metal halides
Optical communication
Perovskites
Photoelectricity
Physical Sciences
Physics
Physics, Applied
Q factors
Quantum efficiency
Science & Technology
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Zusammenfassung:Cesium lead halide perovskites have shown great potential applications in photoelectric devices because of their high quantum efficiency, good stability, and tunable bandgap. Herein, we prepared CsPbBr3 microwires with a high crystal quality, smooth surface, and rectangular cross section via the solution method. The as-prepared microwires presented a high quality whispering gallery mode lasing with a low threshold of 9.1 μJ cm−2 and a high quality factor of ∼3000. Furthermore, we obtained the alloys of CsPbClxBr3−x (0 < x 
ISSN:0003-6951
1077-3118
DOI:10.1063/5.0035104