Comparative study of first- and second-order Raman spectra of MWCNT at visible and infrared laser excitation

被引：421

作者：

Antunes, E. F.

Lobo, A. O.

Corat, E. J.

Trava-Airoldi, V. J.

Martin, A. A.

Verissimo, C.

机构：

[1] INPE, Associated Lab Sensors & Mat, BR-12245970 Sao Jose Dos Campos, SP, Brazil

[2] Univ Vale Paraiba, Lab Biomed Vibrat Spect, BR-12244000 Sao Jose Dos Campos, SP, Brazil

[3] Univ Estadual Campinas, CCS, BR-13083970 Campinas, SP, Brazil

来源：

CARBON | 2006年 / 44卷 / 11期

基金：

巴西圣保罗研究基金会;

关键词：

carbon nanotubes; graphite; carbon fiber; HOPG; Raman spectroscopy;

D O I：

10.1016/j.carbon.2006.03.003

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Comparative studies of first- and second-order Raman spectra of multi-walled carbon nanotubes (MWCNT) and three other graphitic materials - carbon fiber, powdered graphite and highly ordered pyrolytic graphite - are reported. Three laser excitation wavelengths were used: 514.5, 785 and 1064 nm. In first-order Raman spectra, the positions of the bands D, G and D' (1100-1700 cm(-1)) presented very similar behavior, however the intensity (I) ratio I-D/I-G ratio showed differed behaviors for each material which may be correlated to differences in their structural ordering. In the second-order spectra, the G' band varied strongly according to structure with the infrared laser excitation. (C) 2006 Elsevier Ltd. All rights reserved.

引用

页码：2202 / 2211

页数：10

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