Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/150906
Title: Continuous-wave vertical cavity surface-emitting lasers based on single crystalline lead halide perovskites
Authors: Zhang, Hongbo
Zou, Chenji
Chen, Yu
Wu, Lishu
Wen, Wen
Du, Bowen
Feng, Shun
Shang, Jingzhi
Cong, Chunxiao
Yu, Ting
Keywords: Science::Physics
Issue Date: 2021
Source: Zhang, H., Zou, C., Chen, Y., Wu, L., Wen, W., Du, B., Feng, S., Shang, J., Cong, C. & Yu, T. (2021). Continuous-wave vertical cavity surface-emitting lasers based on single crystalline lead halide perovskites. Advanced Optical Materials, 9(13), 2001982-. https://dx.doi.org/10.1002/adom.202001982
Project: Tier 1 RG 93/19
NRF-CRP-21-2018-0007
Journal: Advanced Optical Materials 
Abstract: Lead halide perovskites are intriguing semiconductors for lasers due to high quantum yield, tunable bandgaps and facile solution-process ability. However, limited by the weak optical confinement, continuous-wave (CW) pumped lasing, as one prerequisite for the electrically pumped lasing, is still challenging in bare lead halide perovskites without high-quality factor (Q) artificial optical cavity. Herein, we report the lasing emission in methylammonium lead tribromide (MAPbBr3) incorporated with a vertical microcavity under continuous pumping at 80 K. The single-crystalline MAPbBr3 perovskite nanoplates were fabricated by the two-step solution method. The MAPbBr3 based vertical cavity surface emitting laser (VCSEL) presents a low threshold of 55.2 W cm-2 and a high Q-factor of 1140 at low temperature. The low threshold lasing emission can be attributed to strong optical confinement in the high-Q cavity and great PL enhancement at 80 K, which is induced by a transition from tetragonal to orthorhombic phase, demonstrated by in-situ temperature Raman spectroscopy. These findings envisage the prospective applications of single-crystalline metal halide perovskites in practicable laser devices.
URI: https://hdl.handle.net/10356/150906
ISSN: 2195-1071
DOI: 10.1002/adom.202001982
Rights: This is the peer reviewed version of the following article: Zhang, H., Zou, C., Chen, Y., Wu, L., Wen, W., Du, B., Feng, S., Shang, J., Cong, C. & Yu, T. (2021). Continuous-wave vertical cavity surface-emitting lasers based on single crystalline lead halide perovskites. Advanced Optical Materials, 9(13), 2001982-. https://dx.doi.org/10.1002/adom.202001982, which has been published in final form at https://doi.org/10.1002/adom.202001982. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Fulltext Permission: embargo_20220705
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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