Nanoscience & Nanotechnology, Volume 4.
Nanostructured Materials Application & Innovation Transfer

Edited By E. Balabanova & I. Dragieva
December 2004
Heron Press
ISBN: 9545801603
318 pages, Illustrated, 8 " x 11 "
$197.50 Paper Original


The electronic band structure and the dielectric function of single-walled carbon nanotubes (SWNTs) are studied within all-valence non-orthogonal tight-binding model. The helical symmetry of the nanotubes is explicitly accounted for in the model, which allows for a significant reduction of the computational time. Calculation of the band structure for all 48 SWNTs with radii between 2A and 5A is carried out.

The dielectric function for the same nanotube types is calculated in the random phase approximation for energies up to 6 eV and the optical transition energies are derived. The latter data can be used for nanotube characterization in optical absorption experiments and for determination of the nanotube types, for which the Raman light scattering from phonons is resonant.

Physics
Heron Press Science Series

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