A flexible sandwich graphene/silver nanowires/graphene thin film for high-performance electromagnetic interference shielding

Title
A flexible sandwich graphene/silver nanowires/graphene thin film for high-performance electromagnetic interference shielding
Authors
홍순만구종민샤자드 파이잘Pradip Kumar
Issue Date
2016-10
Publisher
RSC advances
Citation
VOL 6, NO 103-101287
Abstract
We report the preparation and characterization of flexible graphene/silver nanowires (AgNWs)/graphene sandwich thin films for high-performance electromagnetic interference shielding. AgNWs were sandwiched between reduced graphene oxide (rGO) films through a simple filtration process followed by reduction with hydriodic acid. The rGO/AgNWs/rGO thin films exhibited not only an excellent electrical conductivity of 64[thin space (1/6-em)]500 S m− 1 but also a larger EMI shielding value of ∼38 dB at 35 wt% AgNW content. This enhancement in electrical conductivity and EMI shielding is mainly attributed to the tight adhesion of the top and bottom graphene layers with the middle AgNW layer. In the sandwich hybrid films, the graphene layers not only provide extra pathways for electron transfer, but also block the contact between the AgNWs and oxygen, leading to a better resistance to oxidation, good electrical conductivity, and excellent mechanical flexibility.
URI
http://pubs.kist.re.kr/handle/123456789/64649
ISSN
2046-2069
Appears in Collections:
KIST Publication > Article
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