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Electronic band structure of doped single-walled carbon nanotube of small diameter

OSMAN ÖZSOY1,2,*

Affiliation

  1. Department of Physics, Gaziosmanpaşa University, Tokat 60240 Turkey
  2. Bozantı Cd. Gökçe Apt. No: 114/13, Kayseri, 38020 Turkey

Abstract

We briefly visit the extended Su-Schrieffer-Heeger(SSH) model Hamitonian for different geometries that that of graphene and carbon nanotubes. Electron doping has become accessible to model Hamiltonian, furnishing us with simpler example of doped systems in carbon nanotubes. The electronic structures of carbon nanotubes vary as the number of electron increases. The energy gap values decrease as electron doping increases for weakly doped case. However, in the system doped with five and six electrons, the energy gap narrowing almost stops and is rather negligible in further heavily doped cases..

Keywords

SSH Model, Carbon, Single-walled nanotube, Electron doping.

Submitted at: April 26, 2007
Accepted at: July 15, 2007

Citation

OSMAN ÖZSOY, Electronic band structure of doped single-walled carbon nanotube of small diameter, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 7, pp. 2283-2287 (2007)