Influence of diameter in the Raman spectra of aligned multi-walled carbon nanotubes

被引：205

作者：

Antunes, E. F.

Lobo, A. O.

Corat, E. J.

Trava-Airoldi, V. J.

机构：

[1] Inst Nacl Pesquisas Espaciais, Lab Associado Sensores & Mat, BR-12245970 Sao Jose Dos Campos, Brazil

[2] Inst Tecnol Aeronaut, BR-12228900 Sao Jose Dos Campos, Brazil

来源：

CARBON | 2007年 / 45卷 / 05期

基金：

巴西圣保罗研究基金会;

关键词：

D O I：

10.1016/j.carbon.2007.01.003

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：

Aligned multi-walled carbon nanotubes (MWCNTs) were produced with different diameters, according to the thickness of Ni catalyst layer, by microwave plasmas enhanced chemical vapor deposition, in N-2/H-2/CH4 environment. Raman spectroscopy, performed both on top and lateral surfaces, revealed that the relative intensity of the G' band and the G and G' bandwidths have high sensitivity to tube diameter distribution and also to structural variations along the tube axis. The D band present a distinct behavior: I-D/I-G is sensitive to structural organization, particularly along tube axis, while D bandwidth is sensitive to tube diameter distribution. This result may indicate D bandwidth as a parameter to correlate to the diameter of the aligned MWCNTs. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：913 / 921

页数：9

共 45 条

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