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Drift velocity and mobility of a graphene nanoribbon in a high magnitude electric field

Amin, N. A. and Ahmadi, Mohammad Taghi and Johari, Zaharah and Webb, J. F. and Mousavi, S. M. and Ismail, Razali (2011) Drift velocity and mobility of a graphene nanoribbon in a high magnitude electric field. In: Proceedings Of The Fourth Global Conference On Power Control And Optimization. American Institute of Physics, pp. 177-179. ISBN 978-073540893-7

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Official URL: http://dx.doi.org/10.1063/1.3592462

Abstract

We study the high-field transport behavior of a graphene nanoribbon in the degenerate and nondegenerate regimes by incorporating a previous low field mobility calculation modified for a high electric field in both regimes. The drift velocity model presented predicts that the transport behaviour is different in each regime when subject to an electric field. Our theoretical results are comparable with experimental data. The Fermi velocity (for the degenerate regime) and thermal velocity (for the nondegenerate regime) coupled with optical phonon emission have a large influence on the drift velocity leading to a velocity saturation preceded by a monotonic increase with increasing electric field.

Item Type:Book Section
Uncontrolled Keywords:degenerate, drift velocity, graphene nanoribbon, high-field carrier transport, mobility, nondegenerate
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:28994
Deposited By: Liza Porijo
Deposited On:07 Dec 2012 01:57
Last Modified:07 Dec 2012 01:57

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