High field transport in carbon nanotube
Projected to be a material of scientific legend, carbon nanotubes (CNTs) exhibit a variety of intriguing electronic properties such as metallic and semiconducting behaviour due to the quantum confinement of electrons in the circumferential direction. The steady-state electronic transport properties...
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| Format: | Thesis |
| Language: | English |
| Published: |
2015
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| Subjects: | |
| Online Access: | http://eprints.utm.my/id/eprint/48754/25/IjeomahGeoffreyUgochukwuMFKE2015.pdf |
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| Summary: | Projected to be a material of scientific legend, carbon nanotubes (CNTs) exhibit a variety of intriguing electronic properties such as metallic and semiconducting behaviour due to the quantum confinement of electrons in the circumferential direction. The steady-state electronic transport properties of carbon nanotube, including phonon scattering are investigated. High Field Transport spanning the complete landscape of equilibrium to nonequilibrium regimes are examined. The role of chirality in the evaluation of the electronic band structure of CNTs, and the zone folding of graphene, an important precursor for CNT formation are studied. The electron energy dispersion relations are obtained by applying the zone folding technique to the dispersion relation of graphene, which are calculated using the tight binding formalism. Nonequilibrium Arora Distribution Function (NEADF), which is a natural extension of Fermi Dirac distribution function by inclusion of energy gained / absorbed in the mean free part (mfp) forms the strong foundation for analysis, from theoretical perspective. |
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