e-Journal of Surface Science and Nanotechnology
Conference -A3 Foresight-
Excitonic Effects on Raman Intensity of Single Wall Carbon Nanotubes
Kentaro SatoAhmad R. T. NugrahaRiichiro Saito
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Volume 8 (2010) Pages 358-361

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Abstract

The exciton-photon matrix elements, exciton-phonon matrix elements, and resonance Raman intensity for radial breathing mode are calculated as a function of a dielectric constant κ which represents surrounding materials of single wall carbon nanotubes using the extended tight binding method. Since the exciton wave function in the real space becomes more delocalized with increasing κ, the exciton-photon matrix elements and resonance Raman intensity for radial breathing mode decrease with increasing κ, while the exciton-phonon matrix elements are not so sensitive to the change of the exciton wave function. [DOI: 10.1380/ejssnt.2010.358]

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