• 文献标题:   Low interfacial contact resistance of Al-graphene composites via interface engineering
  • 文献类型:   Article
  • 作  者:   HAHM MG, NAM J, CHOI M, PARK CD, CHO B, KAZUNORI S, KIM YA, KIM DY, ENDO M, KIM DH, VAJTAI R, AJAYAN PM, SONG SM
  • 作者关键词:   graphene, aluminum, contact resistance, exfoliation, composite
  • 出版物名称:   NANOTECHNOLOGY
  • ISSN:   0957-4484 EI 1361-6528
  • 通讯作者地址:   Korea Inst Mat Sci
  • 被引频次:   2
  • DOI:   10.1088/0957-4484/26/21/215603
  • 出版年:   2015

▎ 摘  要

Al-based composites incorporating multilayered graphene sheets were developed via a facile approach. The multilayered graphene sheets were fabricated from the expanded graphite via a simple mechanical exfoliation process. The facile extrusion molding process with Al powder and graphene sheets exfoliated from expended graphite afforded Al-based graphene composite rods. These composites showed enhanced thermal conductivity compared to the pristine Al rods. Moreover, the Al-based multilayered graphene sheet composites exhibited lower interfacial contact resistance between graphene-based electrodes than the pristine Al. With increasing degrees of dispersion, the number of exposed graphene sheets increases, thereby significantly decreasing the interfacial contact resistance between the composite and external graphite electrode.