Nano Archive

Modeling extended contacts for nanotube and graphene devices

Nemec, Norbert and Tomanek, David and Cuniberti, Gianaurelio (2008) Modeling extended contacts for nanotube and graphene devices. PHYSICAL REVIEW B, 77 (12).

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Official URL: http://link.aps.org/doi/10.1103/PhysRevB.77.125420

Abstract

Carrier injection into carbon nanotubes and graphene nanoribbons, contacted by a metal coating over an arbitrary length, is studied by various means: Minimal models allow for exact analytic solutions, which can be transferred to the original system with high precision. Microscopic ab initio calculations of the electronic structure at the carbon-metal interface allow us to extract-for Ti and Pd as contacting materials-realistic parameters, which are then used in large scale tight-binding models for transport calculations. The results are shown to be robust against nonepitaxially grown electrodes and general disorder at the interface, as well as various refinements of the model.

Item Type:Article
Subjects:Material Science > Functional and hybrid materials
Physical Science > Nano objects
ID Code:2433
Deposited By:Farnush Anwar
Deposited On:09 Jan 2009 13:13
Last Modified:22 Jan 2009 16:18

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