Observation and Optical Control of Saturable Excitonic Behaviors in Monolayer MoS2

doi:10.1002/pssr.202000222

HFCAS OpenIR

	Observation and Optical Control of Saturable Excitonic Behaviors in Monolayer MoS2
	Zhang, Jie 1; Ding, Lan 1; Zhou, Shun 1; Xiao, Yi Ming 1; Xu, Wen 1,2
	2020-07-01
发表期刊	PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
ISSN	1862-6254
通讯作者	Ding, Lan(dinglan@ynu.edu.cn)
摘要	In photonics and condensed-matter physics, optical control of many-body phenomena is significant for fundamental studies and optoelectronic applications. Herein, pronounced saturable excitonic behaviors in the nontransient optical response of monolayer MoS(2)pumped by continuous-wave laser are observed. These behaviors include bleaching of the excitonic absorption and a blueshift of the exciton resonance at increasing power of pump light, which are attributed to the band-filling nonlinearity of excitons and repulsion-dominated interaction between them, respectively. Moreover, it is also shown that the substrate has a strong impact on these phenomena, which can be ascribed to the changes in the dielectric screening effect and the trion spectral weight. In nontransient regime, the results not only demonstrate the analogy between excitons and atoms with respect to photon-particle and interparticle interactions, but also show the optical control of this many-body effect. These findings can also push forward the research of photonic devices based on 2D materials.
关键词	2D materials active tuning excitons light-matter interactions MoS2
DOI	10.1002/pssr.202000222
关键词[WOS]	NONLINEAR ABSORPTION ; PHOTOLUMINESCENCE ; OPTOELECTRONICS ; NANOSHEETS ; TRIONS
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[11764045] ; National Natural Science Foundation of China[U1832153] ; Ten-thousand Talents Program of Yunnan Province[YNWR-QNBJ-2018-037] ; Science and Technology Major Project of Yunnan Province[2018ZI002] ; Center of Science and Technology of Hefei Academy of Science ; Yunnan University[2016MS14]
项目资助者	National Natural Science Foundation of China ; Ten-thousand Talents Program of Yunnan Province ; Science and Technology Major Project of Yunnan Province ; Center of Science and Technology of Hefei Academy of Science ; Yunnan University
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000545977500001
出版者	WILEY-V C H VERLAG GMBH
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/71180
专题	中国科学院合肥物质科学研究院
通讯作者	Ding, Lan
作者单位	1.Yunnan Univ, Sch Phys & Astron, Kunming 650091, Yunnan, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jie,Ding, Lan,Zhou, Shun,et al. Observation and Optical Control of Saturable Excitonic Behaviors in Monolayer MoS2[J]. PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS,2020.
APA	Zhang, Jie,Ding, Lan,Zhou, Shun,Xiao, Yi Ming,&Xu, Wen.(2020).Observation and Optical Control of Saturable Excitonic Behaviors in Monolayer MoS2.PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS.
MLA	Zhang, Jie,et al."Observation and Optical Control of Saturable Excitonic Behaviors in Monolayer MoS2".PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS (2020).