Cesium lead bromide (CsPbBr3) perovskite has attracted great attention recently for its potentials for next-generation green-color lasing devices owing to the relatively high structural stability and the high emission efficiency among the perovskite family. Herein, we explore the origins of cavity modes in CsPbBr3 microplatelets (MPs) lasers by using angle-resolved microphotoluminescence Fourier imaging technique, which is still controversial so far. In-plane Fabry–Pérot (F-P) mode lasing transition to whispering-gallery-mode (WGM) lasing is verified at room temperature, which mostly occurs in large MPs with edge length (L) over 13 μm. The F-P lasing is suppressed upon decreasing L or increasing excitation density, and the WGM lasing is predominant for all MPs at high excitation density. Furthermore, the parity and symmetry of in-plane F-P modes are classified. These results advance the fundamental understanding of lasing modes in planar microcavities as well as their applications in on-chip interconnection and quantum optics.
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Lasing from reduced dimensional perovskite microplatelets: Fabry-Pérot or whispering-gallery-mode?
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7 December 2019
Rapid Communication|
December 02 2019
Lasing from reduced dimensional perovskite microplatelets: Fabry-Pérot or whispering-gallery-mode?
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Lead Halide Perovskites
Qi Li;
Qi Li
a)
1
Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Hubei Key Laboratory of Ferro and Piezoelectric Materials and Devices, Faculty of Physics and Electronic Science, Hubei University
, Wuhan 430062, China
2
Department of Materials Science and Engineering, College of Engineering, Peking University
, Beijing 100871, China
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Chun Li;
Chun Li
a)
2
Department of Materials Science and Engineering, College of Engineering, Peking University
, Beijing 100871, China
3
Division of Nanophotonics, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology
, Beijing 100190, China
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Qiuyu Shang;
Qiuyu Shang
2
Department of Materials Science and Engineering, College of Engineering, Peking University
, Beijing 100871, China
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Liyun Zhao;
Liyun Zhao
2
Department of Materials Science and Engineering, College of Engineering, Peking University
, Beijing 100871, China
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Shuai Zhang;
Shuai Zhang
3
Division of Nanophotonics, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology
, Beijing 100190, China
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Yan Gao;
Yan Gao
1
Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Hubei Key Laboratory of Ferro and Piezoelectric Materials and Devices, Faculty of Physics and Electronic Science, Hubei University
, Wuhan 430062, China
2
Department of Materials Science and Engineering, College of Engineering, Peking University
, Beijing 100871, China
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Xinfeng Liu
;
Xinfeng Liu
3
Division of Nanophotonics, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology
, Beijing 100190, China
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Xina Wang
;
Xina Wang
b)
1
Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Hubei Key Laboratory of Ferro and Piezoelectric Materials and Devices, Faculty of Physics and Electronic Science, Hubei University
, Wuhan 430062, China
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Qing Zhang
Qing Zhang
b)
2
Department of Materials Science and Engineering, College of Engineering, Peking University
, Beijing 100871, China
4
Research Center for Wide Gap Semiconductor, Peking University
, Beijing 100871, China
5
The State Key Laboratory of Bioelectronics, Southeast University
, Nanjing 210096, China
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Qi Li
1,2,a)
Chun Li
2,3,a)
Qiuyu Shang
2
Liyun Zhao
2
Shuai Zhang
3
Yan Gao
1,2
Xinfeng Liu
3
Xina Wang
1,b)
Qing Zhang
2,4,5,b)
1
Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Hubei Key Laboratory of Ferro and Piezoelectric Materials and Devices, Faculty of Physics and Electronic Science, Hubei University
, Wuhan 430062, China
2
Department of Materials Science and Engineering, College of Engineering, Peking University
, Beijing 100871, China
3
Division of Nanophotonics, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology
, Beijing 100190, China
4
Research Center for Wide Gap Semiconductor, Peking University
, Beijing 100871, China
5
The State Key Laboratory of Bioelectronics, Southeast University
, Nanjing 210096, China
a)
Contributions: Q. Li and C. Li contributed equally to this work.
Note: The paper is part of the JCP Special Topic on Lead Halide Perovskites.
J. Chem. Phys. 151, 211101 (2019)
Article history
Received:
September 17 2019
Accepted:
November 11 2019
Citation
Qi Li, Chun Li, Qiuyu Shang, Liyun Zhao, Shuai Zhang, Yan Gao, Xinfeng Liu, Xina Wang, Qing Zhang; Lasing from reduced dimensional perovskite microplatelets: Fabry-Pérot or whispering-gallery-mode?. J. Chem. Phys. 7 December 2019; 151 (21): 211101. https://doi.org/10.1063/1.5127946
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