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Sensors 2013, 13(7), 9388-9395; doi:10.3390/s130709388
Article

Effect of Tensile Strain on Thermal Conductivity in Monolayer Graphene Nanoribbons: A Molecular Dynamics Study

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Received: 14 May 2013 / Revised: 12 July 2013 / Accepted: 15 July 2013 / Published: 22 July 2013
(This article belongs to the Section Physical Sensors)
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Abstract

The thermal conductivity of monolayer graphene nanoribbons (GNRs) with different tensile strain is investigated by using a nonequilibrium molecular dynamics method. Significant increasing amplitude of the molecular thermal vibration, molecular potential energy vibration and thermal conductivity vibration of stretching GNRs were detected. Some 20%~30% thermal conductivity decay is found in 9%~15% tensile strain of GNR cases. It is explained by the fact that GNR structural ridges scatter some low-frequency phonons which pass in the direction perpendicular to the direction of GNR stretching which was indicated by a phonon density of state investigation.
Keywords: graphene nanoribbons; thermal conductivity; phonon graphene nanoribbons; thermal conductivity; phonon
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Zhang, J.; He, X.; Yang, L.; Wu, G.; Sha, J.; Hou, C.; Yin, C.; Pan, A.; Li, Z.; Liu, Y. Effect of Tensile Strain on Thermal Conductivity in Monolayer Graphene Nanoribbons: A Molecular Dynamics Study. Sensors 2013, 13, 9388-9395.

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