title: Low interfacial contact resistance of Al-graphene composites via interface engineering.
abstract: 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.
authors.affiliation: Department of Advanced Functional Thin Films, Surface Technology Division, Korea Institute of Materials Science, 797 Changwondaero, Sungsan-Gu, Changwon, Gyeongnam 642-831, Korea.
authors.forename: Myung Gwan
authors.initials: MG
authors.lastname: Hahm
authors.forename: Jaewook
authors.initials: J
authors.lastname: Nam
authors.forename: Minseok
authors.initials: M
authors.lastname: Choi
authors.forename: Chi-Dong
authors.initials: CD
authors.lastname: Park
authors.forename: Byungjin
authors.initials: B
authors.lastname: Cho
authors.forename: Sanada
authors.initials: S
authors.lastname: Kazunori
authors.forename: Yoong Ahm
authors.initials: YA
authors.lastname: Kim
authors.forename: Dong Young
authors.initials: DY
authors.lastname: Kim
authors.forename: Morinobu
authors.initials: M
authors.lastname: Endo
authors.forename: Dong-Ho
authors.initials: DH
authors.lastname: Kim
authors.forename: Robert
authors.initials: R
authors.lastname: Vajtai
authors.forename: Pulickel M
authors.initials: PM
authors.lastname: Ajayan
authors.forename: Sung Moo
authors.initials: SM
authors.lastname: Song