• 文献标题:   Wrinkling and thermal conductivity of one graphene sheet under shear
  • 文献类型:   Article
  • 作  者:   SHEN HJ
  • 作者关键词:   shear wrinkling, molecular dynamic, thermal conductivity, graphene
  • 出版物名称:   MOLECULAR SIMULATION
  • ISSN:   0892-7022 EI 1029-0435
  • 通讯作者地址:   Sch Aeronaut Appl Mech
  • 被引频次:   6
  • DOI:   10.1080/08927022.2013.854895
  • 出版年:   2015

▎ 摘  要

Tersoff-potential - based molecular dynamics method is used to simulate wrinkling deformation of one graphene sheet under shear, and the obtained deformation is compared with analytical solutions of macro-membrane. Furthermore, thermal conductivity of the wrinkled graphene at different temperatures is calculated. It is found that (1) the wrinkling deformation of graphene sheet under shear is close to the analytical solutions of macro-membrane under shear, which implies that the solutions of macro-membrane are applicable to predict the wrinkling deformation of graphene sheets under shear; (2) the more serious the wrinkling of the graphene under shear is, the stronger the phonon scattering is and, therefore, the lower the thermal conductivity of the wrinkled graphene is; (3) within the temperature range of 400-700K, the thermal conductivity of graphene sheet decreases with increase in temperature.