Structure Dependence of the Intermediate-Frequency Raman Modes in Isolated Single-Walled Carbon Nanotubes

doi:10.1021/jp3090149

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	Structure Dependence of the Intermediate-Frequency Raman Modes in Isolated Single-Walled Carbon Nanotubes
	Wang, Jinyong; Yang, Juan; Zhang, Daqi; Li, Yan
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2012-11-08
卷号	116 期号:44 页码:23826-23832
ISSN号	1932-7447
DOI	10.1021/jp3090149
英文摘要	Resonance Raman spectra in the intermediate- frequency mode (IFM) region have been studied for isolated single-walled carbon nanotubes (SWNTs) at the single-nanotube level. The SWNT samples with diameter in the range of 0.8-2.0 nm are first grown on quartz substrate and then transferred to silicon substrate by nanotransfer printing technique. A specific linear relation of omega(RBM) = 222.C/d(t) + 8.0 is found to best suit for our transferred isolated SWNTs. By measuring more than 80 isolated SWNTs with 36 different assigned chiralities using five different excitation lasers, the dependence of the nondispersive out-of-plane transverse optical (oTO) and the dispersive IFM- and IFM+ features on the nanotube structure has been determined. It is found that the oTO, IFM-, and IFM+ frequencies decrease slightly, decrease significantly, and increase slightly with decreasing nanotube diameter, respectively. The appearance of the oTO band is indifferent to SWNT chirality or type, while the IFM- feature can only be observed in metallic or MOD1 semiconducting nanotubes with small chiral angles. The IFM- feature in resonance Raman spectra thus offers a method to distinguish small theta nanotubes from large theta nanotubes and distinguish MOD1 semiconducting nanotubes from MOD2 semiconducting nanotubes.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000310769300078
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/43361]
专题	中国科学院化学研究所
通讯作者	Yang, Juan
作者单位	Peking Univ, State Key Lab Rare Earth Mat Chem & Applicat, Key Lab Phys & Chem Nanodevices, Beijing Natl Lab Mol Sci,Coll Chem & Mol Engn, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jinyong,Yang, Juan,Zhang, Daqi,et al. Structure Dependence of the Intermediate-Frequency Raman Modes in Isolated Single-Walled Carbon Nanotubes[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2012,116(44):23826-23832.
APA	Wang, Jinyong,Yang, Juan,Zhang, Daqi,&Li, Yan.(2012).Structure Dependence of the Intermediate-Frequency Raman Modes in Isolated Single-Walled Carbon Nanotubes.JOURNAL OF PHYSICAL CHEMISTRY C,116(44),23826-23832.
MLA	Wang, Jinyong,et al."Structure Dependence of the Intermediate-Frequency Raman Modes in Isolated Single-Walled Carbon Nanotubes".JOURNAL OF PHYSICAL CHEMISTRY C 116.44(2012):23826-23832.