The possible way to evaluate the purity of double-walled carbon nanotubes over single wall carbon nanotubes by chemical doping

被引：25

作者：

Kim, YA

Muramatsu, H

Kojima, M

Hayashi, T

Endo, M

Terrones, M

Dresselhaus, MS

机构：

[1] Shinshu Univ, Fac Engn, Dept Elect & Elect Engn, Nagano 3808553, Japan

[2] IPICYT, Adv Mat Dept, San Luis Potosi 78216, Mexico

[3] MIT, Cambridge, MA 02139 USA

来源：

CHEMICAL PHYSICS LETTERS | 2006年 / 420卷 / 4-6期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/j.cplett.2005.12.068

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：

Here, we carried out Raman study on chemically doped single wall carbon nanotube (SWNT)/double-walled carbon nanotube (DMNT) mixed bucky-papers. Their highly different Raman responses (e.g., a large upshift of tangential mode of SWNT and no large changes in the frequencies of tangential mode assigned to the outer tubes of the DWNT) upon doping with the sulfuric acid could be used as a qualitative indicator of the purity of the DWNT samples with the concentration of its SWNTs contents. (c) 2005 Elsevier B.V. All rights reserved.

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页码：377 / 381

页数：5

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