中国科学院长春光学精密机械与物理研究所

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	Room-Temperature Continuous-Wave Microcavity Lasers from Solution-Processed Smooth Quasi-2D Perovskite Films with Low Thresholds
	X. Gao; J. Lin; X. Guo; G. He; D. Zou; T. Ishii; D. Zhang; C. Zhao; H. Zhan; J. S. Huang; X. Liu; C. Adachi; C. Qin and L. Wang
	2023
发表期刊	Journal of Physical Chemistry Letters (IF:6.71[JCR-2019],7.811[5-Year])
ISSN	19487185
卷号	14期号:10页码:2493-2500
摘要	Continuous-wave (CW) lasing in quasi-two-dimensional (2D) perovskite-based distributed feedback cavities has been achieved at room temperature; however, CW microcavity lasers comprising distributed Bragg reflectors (DBRs) have rarely been prepared using solution-processed quasi-2D perovskite films because the roughness of perovskite films significantly increases intersurface scattering loss in the microcavity. Herein, high-quality spin-coated quasi-2D perovskite gain films were prepared using an antisolvent to reduce roughness. The highly reflective top DBR mirrors were deposited via room-temperature e-beam evaporation to protect the perovskite gain layer. Lasing emission of the prepared quasi-2D perovskite microcavity lasers under CW optical pumping was clearly observed at room temperature, featuring a low threshold of ∼1.4 W cm-2 and beam divergence of ∼3.5°. It was concluded that these lasers originated from weakly coupled excitons. These results elucidate the importance of controlling the roughness of quasi-2D films to achieve CW lasing, thus facilitating the design of electrically pumped perovskite microcavity lasers. © 2023 American Chemical Society.
DOI	10.1021/acs.jpclett.3c00279
URL	查看原文
收录类别	sci ; ei
引用统计	正在获取...
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67476
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	X. Gao,J. Lin,X. Guo,et al. Room-Temperature Continuous-Wave Microcavity Lasers from Solution-Processed Smooth Quasi-2D Perovskite Films with Low Thresholds[J]. Journal of Physical Chemistry Letters,2023,14(10):2493-2500.
APA	X. Gao.,J. Lin.,X. Guo.,G. He.,D. Zou.,...&C. Qin and L. Wang.(2023).Room-Temperature Continuous-Wave Microcavity Lasers from Solution-Processed Smooth Quasi-2D Perovskite Films with Low Thresholds.Journal of Physical Chemistry Letters,14(10),2493-2500.
MLA	X. Gao,et al."Room-Temperature Continuous-Wave Microcavity Lasers from Solution-Processed Smooth Quasi-2D Perovskite Films with Low Thresholds".Journal of Physical Chemistry Letters 14.10(2023):2493-2500.

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