Stability of carbon nanotubes to laser irradiation probed by Raman spectroscopy

被引：23

作者：

Olevik, D. ^{[1
]}

Soldatov, A. V. ^{[1
]}

Dossot, M. ^{[3
]}

Vigolo, B. ^{[2
]}

Humbert, B. ^{[3
]}

McRae, E. ^{[2
]}

机构：

[1] Univ Lulea, Dept Appl Phys & Mech Engn, S-97187 Lulea, Sweden

[2] Nancy Univ, CNRS, Lab Chim Solide Mineral, UMR 7555, F-54506 Vandoeuvre Les Nancy, France

[3] Nancy Univ, CNRS, Lab Chim Phys & Microbiol Environm, UMR 7564, F-54600 Villers Les Nancy, France

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2008年 / 245卷 / 10期

基金：

瑞典研究理事会;

关键词：

D O I：

10.1002/pssb.200879661

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report on a systematic study of the influence of laser irradiation on the Raman spectra of HiPco-produced single, wall CNTs. Specifically, we have examined the Raman response of bundled CNTs to: i) laser power density; ii) exposure time and iii) photon energy (1.96 and 2.33 eV). Our results show that irreversible destruction of CNTs in the bundles can occur at even low laser power density (0.15 kW/cm(2)). The tubes with smaller diameters are influenced first and the rate of CNT destruction increases with photon energy. Finally, we determined that when investigating destruction of CNT bundles, the use of a low laser power density is required because changes in the structure of the bundles can lead to sample temperature changes for otherwise identical measurement parameters. (C) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：2212 / 2215

页数：4

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