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Raman spectral analysis of metallic Single Wall Carbon Nanotube

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3 Author(s)
A. A. Chowdhury ; Department of Electrical Electronic and Communication Engineering, Military Institute of Science and Technology (MIST), Section-12, Mirpur, Dhaka-1216, Bangladesh ; M. Rahman ; S. M. Mominuzzaman

This paper includes a detailed study of Raman G peak analysis for metallic Single Wall Carbon Nanotubes. The higher frequency Lorentzian line shape and the lower frequency Breit-Wigner-Fano (BWF) line shape are two most intense features of Raman G peaks. BWF line shape originated from the Phonon-Plasmon coupling to an electronic continuum is an intrinsic property for metallic SWNTs. From different Raman samples it is observed that BWF line shape has a strong relation with the diameter distributions of SWNTs. We established an equation form for both line width and interaction parameter (1/q) components of BWF line shape which is consistent with the theoretical prediction.

Published in:

Electrical and Computer Engineering (ICECE), 2010 International Conference on

Date of Conference:

18-20 Dec. 2010