Channel conductance of ABA stacking trilayer graphene nanoribbon field-effect transistor

Sadeghi, Hatef and Ahmadi, M. T. and Mousavi, S. M. and Ismail, Razali (2012) Channel conductance of ABA stacking trilayer graphene nanoribbon field-effect transistor. Modern Physics Letters B, 26 (8). ISSN 0217-9849

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Abstract

In this paper, our focus is on ABA trilayer graphene nanoribbon (TGN), in which the middle layer is horizontally shifted from the top and bottom layers. The conductance model of TGN as a FET channel is presented based on Landauer formula. Besides the good reported agreement with experimental study lending support to our model, the presented model demonstrates that minimum conductivity increases dramatically by temperature. It also draws parallels between TGN and bilayer graphene nanoribbon, in which similar thermal behavior is observed. Maxwell-Boltzmann approximation is employed to form the conductance of TGN near the neutrality point. Analytical model in degenerate regime in comparison with reported data proves that TGN-based transistor will operate in degenerate regime like what we expect in conventional semiconductors. Moreover, our model confirms that in similar condition, the conductivity of TGN is less than bilayer graphene nanoribbon as reported in some experiments.

Item Type:
Journal Article
Journal or Publication Title:
Modern Physics Letters B
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3104
Subjects:
ID Code:
72813
Deposited By:
Deposited On:
02 Feb 2015 14:19
Refereed?:
Yes
Published?:
Published
Last Modified:
23 Jan 2020 02:29