Ultrahigh electrically and thermally conductive self-aligned graphene/polymer composites using large-area reduced graphene oxides

Title
Ultrahigh electrically and thermally conductive self-aligned graphene/polymer composites using large-area reduced graphene oxides
Authors
홍순만구종민샤자드 파이잘Pradip Kumar유승건김윤현
Issue Date
2016-05
Publisher
Carbon
Citation
VOL 101, 120-128
Abstract
In this work, for the first time we fabricated highly self-aligned large-area reduced graphene oxide/poly (vinylidene fluoride-co-hexafluoropropylene) (rLGO/PVDF-HFP) composite films through simple solution casting followed by low temperature chemical reduction process. The resulting free-standing rLGO/PVDF-HFP composite thin film revealed excellent electrical conductivity of similar to 3000 S/m and ultrahigh inplane thermal conductivity of similar to 19.5 W/mK at rLGO content of 27.2 wt %. This ultrahigh electrical and thermal conductivity were attributed to the good interfacial interaction, effective chemical reduction, high aspect ratio, and preferential orientation of graphene sheets along the film direction. We believe that our new fabrication procedure can be effectively used for large-scale production and commercialization of conductive composite materials for many thermal and electrical conduction applications.
URI
http://pubs.kist.re.kr/handle/201004/59069
ISSN
00086223
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KIST Publication > Article
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