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Anomalous lattice vibrations of monolayer MoS2 probed by ultraviolet Raman scattering
Liu, Hsiang-Lin1; Guo, Huaihong2; Yang, Teng2,3; Zhang, Zhidong3; Kumamoto, Yasuaki4; Shen, Chih-Chiang1; Hsu, Yu-Te5; Li, Lain-Jong5,6; Saito, Riichiro2; Kawata, Satoshi4,7
通讯作者Liu, Hsiang-Lin(hliu@ntnu.edu.tw)
2015
发表期刊PHYSICAL CHEMISTRY CHEMICAL PHYSICS
ISSN1463-9076
卷号17期号:22页码:14561-14568
摘要We present a comprehensive Raman scattering study of monolayer MoS2 with increasing laser excitation energies ranging from the near-infrared to the deep-ultraviolet. The Raman scattering intensities from the second-order phonon modes are revealed to be enhanced anomalously by only the ultraviolet excitation wavelength 354 nm. We demonstrate theoretically that such resonant behavior arises from a strong optical absorption that forms near the Gamma point and 1/2 (Gamma K) over right arrow of the band structure and an inter-valley resonant electronic scattering by the M-point phonons. These results advance our understanding of the double resonance Raman scattering process in low-dimensional semiconducting nanomaterials and provide a foundation for the technological development of monolayer MoS2 in the ultraviolet frequency range.
资助者Ministry of Science and Technology of Republic of China ; NSFC ; Key Research Program of Chinese Academy of Sciences ; Taiwan Consortium of Emergent Crystalline Materials (TCECM) ; Ministry of Science and Technology ; USA AFOSR BRI ; MEXT-Japan ; JSPS-Japan
DOI10.1039/c5cp01347j
收录类别SCI
语种英语
资助项目Ministry of Science and Technology of Republic of China[NSC 102-2112-M-003-002-MY3] ; NSFC[51331006] ; Key Research Program of Chinese Academy of Sciences[KGZD-EW-T06] ; Taiwan Consortium of Emergent Crystalline Materials (TCECM) ; Ministry of Science and Technology ; USA AFOSR BRI[FA238615100015] ; MEXT-Japan[25107005] ; MEXT-Japan[25286005] ; JSPS-Japan[21226003]
WOS研究方向Chemistry ; Physics
WOS类目Chemistry, Physical ; Physics, Atomic, Molecular & Chemical
WOS记录号WOS:000355633400032
出版者ROYAL SOC CHEMISTRY
引用统计
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/81168
通讯作者Liu, Hsiang-Lin
作者单位1.Natl Taiwan Normal Univ, Dept Phys, Taipei 11677, Taiwan
2.Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan
3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
4.RIKEN, Near Field Nanophoton Res Team, Wako, Saitama 3510198, Japan
5.Acad Sinica, Inst Atom & Mol Sci, Taipei 10617, Taiwan
6.King Abdullah Univ Sci & Technol, Phys Sci & Engn Div, Thuwal 239556900, Saudi Arabia
7.Osaka Univ, Dept Appl Phys, Suita, Osaka 5650871, Japan
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GB/T 7714
Liu, Hsiang-Lin,Guo, Huaihong,Yang, Teng,et al. Anomalous lattice vibrations of monolayer MoS2 probed by ultraviolet Raman scattering[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2015,17(22):14561-14568.
APA Liu, Hsiang-Lin.,Guo, Huaihong.,Yang, Teng.,Zhang, Zhidong.,Kumamoto, Yasuaki.,...&Kawata, Satoshi.(2015).Anomalous lattice vibrations of monolayer MoS2 probed by ultraviolet Raman scattering.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,17(22),14561-14568.
MLA Liu, Hsiang-Lin,et al."Anomalous lattice vibrations of monolayer MoS2 probed by ultraviolet Raman scattering".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 17.22(2015):14561-14568.
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