Edge phonon state of mono- and few-layer graphene nanoribbons observed by surface and interference co-enhanced Raman spectroscopy

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	Edge phonon state of mono- and few-layer graphene nanoribbons observed by surface and interference co-enhanced Raman spectroscopy
	W. C. Ren; R. Saito; L. B. Gao; F. W. Zheng; Z. S. Wu; B. L. Liu; M. Furukawa; J. P. Zhao; Z. P. Chen; H. M. Cheng
	2010
发表期刊	Physical Review B
ISSN	1098-0121
卷号	81 期号:3
摘要	Using surface and interference co-enhanced Raman scattering measurements, we detected two well-distinguished Raman bands at 1450 and 1530 cm(-1) from individual mono-and few-layer graphene nanoribbons (GNRs) prepared by chemical exfoliation and mechanical cleavage of graphite. The intensities of these two peaks strongly depend on the width and edge structure of the GNRs. Combining with first-principles calculations, the 1450 and 1530 cm(-1) Raman bands are assigned to the localized vibration of the edge atoms of zigzag and armchair GNRs terminated with H atoms, respectively. In addition, two weak peaks at similar to 1140 and 1210 cm(-1) are also observed, which are coupled with 1450 and 1530 cm(-1), respectively. These findings enrich the understanding on the fine structure of mono-and few-layer GNRs by Raman spectroscopy.
部门归属	[ren, wencai; gao, libo; wu, zhongshuai; liu, bilu; zhao, jinping; chen, zongping; cheng, hui-ming] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [saito, riichiro; zheng, fawei; furukawa, masaru] tohoku univ, dept phys, sendai, miyagi 9808578, japan.;ren, wc (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;wcren@imr.ac.cn cheng@imr.ac.cn
关键词	Wall Carbon Nanotubes Scattering Graphite Films Ribbons Pseudopotentials Polyacetylene Disorder Systems
URL	查看原文
WOS记录号	WOS:000274002300102
引用统计	被引频次：79[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/321006/31421
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. C. Ren,R. Saito,L. B. Gao,et al. Edge phonon state of mono- and few-layer graphene nanoribbons observed by surface and interference co-enhanced Raman spectroscopy[J]. Physical Review B,2010,81(3).
APA	W. C. Ren.,R. Saito.,L. B. Gao.,F. W. Zheng.,Z. S. Wu.,...&H. M. Cheng.(2010).Edge phonon state of mono- and few-layer graphene nanoribbons observed by surface and interference co-enhanced Raman spectroscopy.Physical Review B,81(3).
MLA	W. C. Ren,et al."Edge phonon state of mono- and few-layer graphene nanoribbons observed by surface and interference co-enhanced Raman spectroscopy".Physical Review B 81.3(2010).