Radial breathing modes of multiwalled carbon nanotubes

被引：113
|
作者：
Zhao, XL
Ando, Y
Qin, LC
Kataura, H
Maniwa, Y
Saito, R
机构：
[1] Meijo Univ, Dept Mat Sci & Engn, Tempaku Ku, Nagoya, Aichi 4688502, Japan
[2] Univ Electrocommun, Dept Elect Engn, Chofu, Tokyo 1828585, Japan
[3] Tokyo Metropolitan Univ, Dept Phys, Tokyo 1920397, Japan
[4] NEC Corp Ltd, JST, ICORP, Nanotubulite Project, Tsukuba, Ibaraki 305, Japan
来源：
CHEMICAL PHYSICS LETTERS | 2002年 / 361卷 / 1-2期
基金：
日本学术振兴会;
关键词：
D O I：
10.1016/S0009-2614(02)00955-7
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：
A number of Raman-active peaks in the low-frequency region (100-600 cm(-1)) were observed for multiwalled carbon nanotubes (MWNTs). They were confirmed to be the radial breathing modes (RBMs) by using polarized Raman scattering. These RBMs originate from very thin innermost tubes (diameter, d =similar to 1 nm) included in MWNTs, and the RBM peak of the smallest carbon nanotubes (d = 0.4 nm) appears at 570 cm(-1). It has also been found that the innermost-diameter distribution calculated from the RBM frequencies agrees well with the observations of high-resolution transmission electron microscopy. This provides a new Raman-spectroscopy-based method for the determination of the innermost diameter of MWNTs. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：169 / 174
页数：6
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