Low-Threshold Amplified Spontaneous Emission from Defect-Passivated Quasi-2D Perovskites

doi:10.1021/acs.jpcc.3c05840

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	Low-Threshold Amplified Spontaneous Emission from Defect-Passivated Quasi-2D Perovskites
	D. Zou, X. Guo, Z. Bao, Y. Lv, T. Wang, B. Zhang and X. Liu
	2023
发表期刊	Journal of Physical Chemistry C
ISSN	19327447
卷号	127 期号:44 页码:21841-21848
摘要	Quasi-two-dimensional (quasi-2D) perovskites demonstrate outstanding optoelectronic performance among various perovskite materials. However, to fully leverage their potential for electrically pumped lasing, careful optimization remains imperative. Exploring the domain of quasi-2D perovskite amplified spontaneous emission (ASE) holds profound significance in achieving cost-effective, solution-processable green lasers. Challenges arise from the intrinsic uneven surfaces and numerous pinholes present in pristine quasi-2D perovskite films, leading to elevated levels of optical scattering and nonradiative recombination. In this study, perovskite films with significantly improved surface morphology, optical gain properties, and ASE performance were obtained through the introduction of Tween 80 (T80) for morphology control and defect passivation. Consequently, the nonradiative recombination rate of T80-treated perovskite films experiences a 10-fold reduction. Moreover, a strikingly low ASE threshold of 3.4 μJ cm-2, accompanied by a 2-fold increase in the optical gain coefficient, has been achieved. This study demonstrates that the T80-treated quasi-2D perovskites have great promise in high-performance laser devices. © 2023 American Chemical Society
DOI	10.1021/acs.jpcc.3c05840
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收录类别	sci ; ei
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/68293
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	D. Zou, X. Guo, Z. Bao, Y. Lv, T. Wang, B. Zhang and X. Liu. Low-Threshold Amplified Spontaneous Emission from Defect-Passivated Quasi-2D Perovskites[J]. Journal of Physical Chemistry C,2023,127(44):21841-21848.
APA	D. Zou, X. Guo, Z. Bao, Y. Lv, T. Wang, B. Zhang and X. Liu.(2023).Low-Threshold Amplified Spontaneous Emission from Defect-Passivated Quasi-2D Perovskites.Journal of Physical Chemistry C,127(44),21841-21848.
MLA	D. Zou, X. Guo, Z. Bao, Y. Lv, T. Wang, B. Zhang and X. Liu."Low-Threshold Amplified Spontaneous Emission from Defect-Passivated Quasi-2D Perovskites".Journal of Physical Chemistry C 127.44(2023):21841-21848.

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