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
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ISSN | 1463-9076 |
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 |
DOI | 10.1039/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 |
推荐引用方式 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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