• 文献标题:   Local strain field engineering on interfacial thermal resistance of graphene nanoribbon
  • 文献类型:   Article
  • 作  者:   XUE YX, CHEN Y, CAI K, LIU ZY, ZHANG YY, WEI N
  • 作者关键词:  
  • 出版物名称:   APPLIED PHYSICS LETTERS
  • ISSN:   0003-6951 EI 1077-3118
  • 通讯作者地址:   Northwest A F Univ
  • 被引频次:   5
  • DOI:   10.1063/1.5016985
  • 出版年:   2018

▎ 摘  要

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. Published by AIP Publishing.