Annihilation mechanism of excitons in a MoS2 monolayer through direct Forster-type energy transfer and multistep diffusion

doi:10.1103/PhysRevB.101.195407

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	Annihilation mechanism of excitons in a MoS2 monolayer through direct Forster-type energy transfer and multistep diffusion
	K. J. Lee, W. Xin and C. L. Guo
	2020
发表期刊	Physical Review B
ISSN	2469-9950
卷号	101 期号:19 页码:9
摘要	An atomically thin MoS2 layer is a direct bandgap semiconductor exhibiting strong electron-hole interaction due to the extreme quantum confinement and reduced screening of Coulomb interactions, which results in the formation of stable excitons at room temperature. Therefore, various excitonic properties of the MoS2 monolayer are extremely important in determining the strength of light-matter interactions including their radiative recombination lifetime and optoelectronic response. In this paper, we report a comprehensive study of the underlying annihilation mechanism of various types of exciton in the MoS2 monolayer using the transient absorption spectroscopy. We rigorously demonstrate that the Forster-type resonance energy transfer is the main annihilation mechanism of A and Bexcitons, while the multistep diffusion process is responsible for C-exciton annihilation, which is supported by critical scientific evidence.
DOI	10.1103/PhysRevB.101.195407
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收录类别	SCI ; EI
语种	英语
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/64311
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	K. J. Lee, W. Xin and C. L. Guo. Annihilation mechanism of excitons in a MoS2 monolayer through direct Forster-type energy transfer and multistep diffusion[J]. Physical Review B,2020,101(19):9.
APA	K. J. Lee, W. Xin and C. L. Guo.(2020).Annihilation mechanism of excitons in a MoS2 monolayer through direct Forster-type energy transfer and multistep diffusion.Physical Review B,101(19),9.
MLA	K. J. Lee, W. Xin and C. L. Guo."Annihilation mechanism of excitons in a MoS2 monolayer through direct Forster-type energy transfer and multistep diffusion".Physical Review B 101.19(2020):9.

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