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Comparative investigation of the vibrational properties of bulk 2H-MoS2 and its exfoliated nanosheets under high pressure
Guo ZY(郭志英); Dong JC(董俊才); Zhu HL(朱海亮); Gong Y(宫宇); Li PS(李鹏善); Yang DL(杨栋亮); Dan XM(单雪梅); Wang Y(王研); Zheng L(郑雷); Zhao YD(赵屹东); Li XD(李晓东); Chen DL(陈栋梁); Guo, ZY; Dong, JC; Zhu, HL; Gong, Y; Li, PS; Yang, DL; Shan, XM; Wang, Y; Zheng, L; Zhao, YD; Li, XD; Chen, DL
2017
Source PublicationJOURNAL OF RAMAN SPECTROSCOPY
ISSN0377-0486
EISSN1097-4555
Volume48Issue:4Pages:596-600
SubtypeArticle
AbstractIn this paper, we present a comparative study of the vibrational properties of bulk MoS2 and its exfoliated nanosheets under high pressure by resonant Raman spectroscopy. The X-ray photoelectron spectroscopy measurements demonstrate that the nanosheets made by chemical lithium insertion method are mainly consisted of metallic 1T phase. The wavenumbers of the E2g1 and A(lg) Raman modes for the few layer nanosheets show a linear relationship with pressure which is different from the multilayer MoS2. This phenomenon is due to the differences in their electronic band structure. The systematic research about the 2LA (M) in bulk 2H-MoS2 suggests that the high pressure behaviour of this double resonance Raman mode arises from the pressure-induced metallization and band gap closure. These difference vibrational properties for few and multilayer MoS2 can be applied for exploring pressure-modulated advanced devices. Copyright (c) 2017 John Wiley & Sons, Ltd.
KeywordMoS2 nanosheets TMDs high pressure longitudinal acoustic phonon
DOI10.1002/jrs.5086
WOS KeywordHYDROGEN EVOLUTION REACTION ; MOS2 NANOSHEETS ; RAMAN-SCATTERING ; LAYER MOS2 ; TRANSITION ; WS2
Indexed BySCI ; SCOPUS ; ADS
Language英语
WOS Research AreaSpectroscopy
WOS SubjectSpectroscopy
WOS IDWOS:000398851300012
ADS Bibcode2017JRSp...48..596G
ADS URLhttps://ui.adsabs.harvard.edu/abs/2017JRSp...48..596G
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2017JRSp...48..596G/citations
Citation statistics
Cited Times:4 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/284845
Collection多学科研究中心
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Guo ZY,Dong JC,Zhu HL,et al. Comparative investigation of the vibrational properties of bulk 2H-MoS2 and its exfoliated nanosheets under high pressure[J]. JOURNAL OF RAMAN SPECTROSCOPY,2017,48(4):596-600.
APA 郭志英.,董俊才.,朱海亮.,宫宇.,李鹏善.,...&Chen, DL.(2017).Comparative investigation of the vibrational properties of bulk 2H-MoS2 and its exfoliated nanosheets under high pressure.JOURNAL OF RAMAN SPECTROSCOPY,48(4),596-600.
MLA 郭志英,et al."Comparative investigation of the vibrational properties of bulk 2H-MoS2 and its exfoliated nanosheets under high pressure".JOURNAL OF RAMAN SPECTROSCOPY 48.4(2017):596-600.
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