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

Sadeghi, Hatef and Ahmadi, Mohammad Taghi and Mousavi, S. M. and Ismail, Razali and Ghadiry, Mahdiar H. (2012) Channel conductance of ABA stacking trilayer graphene nanoribbon field-effect transistor. Modern Physics Letters B, 26 (8). 1250047(1-10). ISSN 0217-9849


Official URL: https://dx.doi.org/10.1142/S0217984912500479


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:Article
Uncontrolled Keywords:Physics
Subjects:Q Science > QC Physics
Divisions:Electrical Engineering
ID Code:46674
Deposited By: Haliza Zainal
Deposited On:22 Jun 2015 05:56
Last Modified:18 Sep 2017 01:51

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