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Title: How lasing happens in CsPbBr3 perovskite nanowires

Journal Article · · Nature Communications

Lead halide perovskites are emerging as an excellent material platform for optoelectronic processes. There have been extensive discussions on lasing, polariton formation, and nonlinear processes in this material system, but the underlying mechanism remains unknown. Here we probe lasing from CsPbBr3 perovskite nanowires with picosecond (ps) time resolution and show that lasing originates from stimulated emission of an electron-hole plasma. We observe an anomalous blue-shifting of the lasing gain profile with time up to 25 ps, and assign this as a signature for lasing involving plasmon emission. The time domain view provides an ultra-sensitive probe of many-body physics which was obscured in previous time-integrated measurements of lasing from lead halide perovskite nanowires.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Programmable Quantum Materials (Pro-QM); Columbia Univ., New York, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC)
Grant/Contract Number:
SC0010692; SC0019443
OSTI ID:
1566607
Journal Information:
Nature Communications, Vol. 10, Issue 1; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 149 works
Citation information provided by
Web of Science

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Cited By (11)

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Single‐Crystalline Perovskite Microlasers for High‐Contrast and Sub‐Diffraction Imaging journal July 2019
Continuous‐Wave Pumped Perovskite Lasers journal June 2019
Structure and optical properties of perovskite-embedded dual-phase microcrystals synthesized by sonochemistry journal February 2020
Amplified spontaneous emission and random lasing using CsPbBr 3 quantum dot glass through controlling crystallization journal January 2020
Active meta-optics and nanophotonics with halide perovskites journal September 2019
Lasing from reduced dimensional perovskite microplatelets: Fabry-Pérot or whispering-gallery-mode? journal December 2019
Lead-Free Perovskites for Lighting and Lasing Applications: A Minireview journal November 2019
Active meta-optics and nanophotonics with halide perovskites preprint January 2019
Mixed halide perovskites for spectrally stable and high-efficiency blue light-emitting diodes journal January 2021
Lead-Free Perovskites for Lighting and Lasing Applications: A Minireview journal November 2019