Multilayered graphene grafted copper wires

Title
Multilayered graphene grafted copper wires
Authors
황준연손동익장이운Luman ZhangMariela MenghiniHyunjin ChoJean-Pierre LocquetJin Won Seo
Keywords
graphene; copper wires; Multilayered; grafted; chemical vapor deposition
Issue Date
2018-11
Publisher
Carbon
Citation
VOL 139-671
Abstract
Multilayered graphene is grown on copper (Cu) wires by chemical vapor deposition. Mechanical, chemical, thermal and electrical performances are investigated as a function of growth conditions. The graphene layer which makes a volume of approximately 0.02% of the Cu wire enables a 28– 37% improvement on tensile strength and strain-to-failure. The chemical resistance of graphene grafted Cu wires increases by 1.5– 3 times in nitric acid, aqua regia, and 1M ammonium persulfate etchants. The electrical resistivity of graphene grafted Cu wires remains almost constant with increasing temperature up to 175  °C, while the resistivity degradation of Cu wires without graphene starts to increase from 70  °C. We demonstrate that graphene can protect the Cu wire from thermal oxidation and chemical etchants and can effectively enhance the mechanical and electrical properties of the Cu wire.
URI
http://pubs.kist.re.kr/handle/201004/67863
ISSN
0008-6223
Appears in Collections:
KIST Publication > Article
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