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Resonant Raman scattering and absorption spectroscopy studies on individual carbon nanotubes in surfactant solutions

M. HUSANU1,* , M. BAIBARAC1, N. PREDA1, I. BALTOG1

Affiliation

  1. National Institute of Materials Physics, Lab. of Optics and Spectroscopy, P. O. Box MG-7, RO-77125, Bucharest, Romania

Abstract

Carbon Nanotubes are exotic low-dimensional systems, and due to their remarkable properties, are promising components for technological applications. The electronic and vibrational signatures raising from their existence as individual entities or associated in bundles, is still a controversed subject. A careful analysis of the G (~1600 cm-1) and RBM (100-200 cm-1) band features as: profile, peak position and intensity in the Raman spectra may be a valuable indication about their dispersion state. The UV-VIS-NIR absorption spectrum comes to support this assumption. Observing the absorption spectra associated to resonant excitation of semiconducting and metallic nanotubes, may reveal complementary informations concerning the individualization procedure efficiency..

Keywords

Resonant Raman scattering, absorption spectroscopy, Carbon nanotubes.

Submitted at: April 1, 2008
Accepted at: July 1, 2008

Citation

M. HUSANU, M. BAIBARAC, N. PREDA, I. BALTOG, Resonant Raman scattering and absorption spectroscopy studies on individual carbon nanotubes in surfactant solutions, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 7, pp. 1722-1726 (2008)