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Electron Transport in Semiconducting Chiral Carbon Nanotubes

  • M. Z. Kauser (a1), A. Verma (a2) and P. P. Ruden (a3)

We report on electron transport characteristics for semiconducting, single wall, chiral carbon nanotubes. The Boltzmann transport equation is solved indirectly by the Ensemble Monte Carlo method. The basis for the transport calculations is provided by electronic structure calculations within the framework of a simple tight binding model. Scattering mechanisms considered are due to the electron-phonon interactions involving longitudinal acoustic, longitudinal optic, and radial breathing mode phonons. Results show significantly increased Umklapp scattering processes due to the reduced Brillouin zone compared to zigzag nanotubes. This results in increased transient velocity oscillation and negative differential mobility.

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MRS Online Proceedings Library (OPL)
  • ISSN: -
  • EISSN: 1946-4274
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