Local strain field engineering on interfacial thermal resistance of graphene nanoribbon

Xue, Y, Chen, Y, Cai, K, Liu, Z, Zhang, Y and Wei, N 2018, 'Local strain field engineering on interfacial thermal resistance of graphene nanoribbon', Applied Physics Letters, vol. 112, no. 2, pp. 1-1.


Document type: Journal Article
Collection: Journal Articles

Title Local strain field engineering on interfacial thermal resistance of graphene nanoribbon
Author(s) Xue, Y
Chen, Y
Cai, K
Liu, Z
Zhang, Y
Wei, N
Year 2018
Journal name Applied Physics Letters
Volume number 112
Issue number 2
Start page 1
End page 1
Total pages 1
Publisher A I P Publishing
Abstract Strain engineering shows distinct advantages in thermal management by tuning thermal resistance in a wide range. Till now, most of the relative studies were concentrated in uniform deformation, wherein the effects of the localized strain field are rarely exploited. Herein, by using non-equilibrium molecular dynamics simulations, we explore the local strain field engineering effects on the interfacial thermal resistance (ITR) of graphene nanoribbons (GNRs). The model of GNRs employed in this work contains extended drag threads, which are used to create a local strain field. Our simulation results show that the ITR has a quasi-linear relationship with the local tensile strain. GNRs are very sensitive to the local strain field in terms of ITR with a maximum enhancement factor of similar to 1.5 at the strain of 10%. The ITR is found to depend linearly on the local strain. This phenomenon is thoroughly explained by micro-structure deformation, heat flux scattering, and phonon density of state overlapping. Our findings here offer a simple yet useful tool in modulating the thermal properties of graphene and other two-dimensional materials by using local strain engineering.
Subject Nanomaterials
Keyword(s) molecular-dynamics
conductivity
transport
conductance
phases
DOI - identifier 10.1063/1.5016985
Copyright notice © 2018 Author(s)
ISSN 0003-6951
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