• 文献标题:   Thermal interface conductance across a graphene/hexagonal boron nitride heterojunction
  • 文献类型:   Article
  • 作  者:   CHEN CC, LI Z, SHI L, CRONIN SB
  • 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:   Univ So Calif
  • 被引频次:   39
  • DOI:   10.1063/1.4866335
  • 出版年:   2014

▎ 摘  要

We measure thermal transport across a graphene/hexagonal boron nitride (h-BN) interface by electrically heating the graphene and measuring the temperature difference between the graphene and BN using Raman spectroscopy. Because the temperature of the graphene and BN are measured optically, this approach enables nanometer resolution in the cross-plane direction. A temperature drop of 60K can be achieved across this junction at high electrical powers (14 mW). Based on the temperature difference and the applied power data, we determine the thermal interface conductance of this junction to be 7.4 x 10(6) Wm(-2)K(-1), which is below the 10(7)-10(8) Wm(-2)K(-1) values previously reported for graphene/SiO2 interface. (C) 2014 AIP Publishing LLC.