Ultraviolet Raman spectroscopy of graphene and transition-metal dichalcogenides

IMR OpenIR

	Ultraviolet Raman spectroscopy of graphene and transition-metal dichalcogenides
	Saito, Riichiro; Nugraha, Ahmad R. T.; Hasdeo, Eddwi H.; Siregar, Syahril; Guo, Huaihong; Yang, Teng; rsaito@flex.phys.tohoku.ac.jp
	2015
发表期刊	PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
ISSN	0370-1972
卷号	252 期号:11 页码:2363-2374
摘要	Here, we overview Raman spectroscopy of graphene and transition- metal dichalcogenides as a function of laser excitation energy EL, especially in the ultraviolet (UV) region. The double resonance G' (or 2D) band of graphene is calculated for the laser energy range up to 7 eV. The intensity of the G' band is proportional to E-L(-1) for E-L = 5 eV. We also discuss electronic Raman spectra and the asymmetric Breit- WignerFano lineshape of the G band in graphene for UV light. Finally, transition- metal dichalcogenide materials show a strong optical absorption of the UV light at the M point at which we expect a two- dimensional van Hove singularity of density of states. The double- resonance Raman spectra for the UV light can be assigned to a combination or overtone phonons at the M point. [GRAPHICS] (C) 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
部门归属	[saito, riichiro ; nugraha, ahmad r. t. ; hasdeo, eddwi h. ; siregar, syahril ; guo, huaihong ; yang, teng] tohoku univ, dept phys, sendai, miyagi 9808578, japan ; [guo, huaihong ; yang, teng] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china
关键词	Double-resonance Raman Graphene Raman Spectroscopy Transition-metal Dichalcogenides Ultraviolet Spectroscopy Van Hove Singularity
资助者	MEXT [25107005, 25286005]; Key Research Program of Chinese Academy of Sciences [KGZD-EW-T06]; NSFC [51331006]
收录类别	sci
语种	英语
WOS记录号	WOS:000364690400002
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/75234
专题	中国科学院金属研究所
通讯作者	rsaito@flex.phys.tohoku.ac.jp
推荐引用方式 GB/T 7714	Saito, Riichiro,Nugraha, Ahmad R. T.,Hasdeo, Eddwi H.,et al. Ultraviolet Raman spectroscopy of graphene and transition-metal dichalcogenides[J]. PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS,2015,252(11):2363-2374.
APA	Saito, Riichiro.,Nugraha, Ahmad R. T..,Hasdeo, Eddwi H..,Siregar, Syahril.,Guo, Huaihong.,...&rsaito@flex.phys.tohoku.ac.jp.(2015).Ultraviolet Raman spectroscopy of graphene and transition-metal dichalcogenides.PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS,252(11),2363-2374.
MLA	Saito, Riichiro,et al."Ultraviolet Raman spectroscopy of graphene and transition-metal dichalcogenides".PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS 252.11(2015):2363-2374.