Issue 45, 2009
From the journal:

Chemical Communications

Raman spectroscopy of strained single-walled carbon nanotubes

Zhongfan Liu,*a   Jin Zhanga  and  Bo Gaoa  

* Corresponding authors

a Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, MOE Key Laboratory for the Physics and Chemistry of Nanodevices, College of Chemistry and Molecular Engineering, Peking University, Beijing, P. R. China
E-mail: zfliu@pku.edu.cn
Fax: 86-10-6275-7157
Tel: 86-10-6275-7157

Abstract

Due to remarkable rolling structure and distinct rolling direction, the chirality-dependent Raman spectra of single-walled carbon nanotubes (SWNTs) show two characteristic features: the radial breathing mode (RBM) and the G-band. Rich information about SWNTs presented by these Raman features makes Raman spectroscopy a general and common tool for characterizing structures and properties of SWNTs and their changes. When exerted by external forces, the geometrical structures of SWNTs will change, which further affects the electronic structures and phonon properties of SWNTs. In this article, emphasis is given to how Raman frequency and resonant-Raman intensity evolve under distinct strains, including uniaxial strain, torsional strain, radial deformation and bending deformation. It is found that depending on different structural variations, Raman spectra of SWNTs have different responses to each strain, showing that resonant-Raman spectroscopy is a suitable tool to characterize and study strains in SWNTs.

Graphical abstract: Raman spectroscopy of strained single-walled carbon nanotubes

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Article information

DOI
https://doi.org/10.1039/B914588E
Article type
Feature Article
Submitted
20 Jul 2009
Accepted
03 Sep 2009
First published
07 Oct 2009

Chem. Commun., 2009, 6902-6918

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Raman spectroscopy of strained single-walled carbon nanotubes

Z. Liu, J. Zhang and B. Gao, Chem. Commun., 2009, 6902 DOI: 10.1039/B914588E

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