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Tailored CVD graphene coating as a transparent and flexible gas barrier.

ABSTRACT: The chemical vapor deposition (CVD) method to obtain tailored graphene as a transparent and flexible gas barrier has been developed. By separating nucleation step from growth, we could reduce early graphene nucleation density and thus induce better stitching between domain boundaries in the second growth step. Furthermore, two step growth in conjunction with electrochemical polishing of Cu foils achieved large graphene domains and improved graphene quality with minimized defects. The performance of resulting graphene as a gas barrier was superior to the graphene obtained by one-step growth on polished or unpolished Cu foils. The CVD graphene reported here could open up the possibility for exploring graphene-based gas barrier due to the minimized density of defect area.

SUBMITTER: Seo TH

PROVIDER: S-EPMC4827024 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature

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Tailored CVD graphene coating as a transparent and flexible gas barrier.

Seo Tae Hoon TH Lee Seula S Cho Hyunjin H Chandramohan S S Suh Eun-Kyung EK Lee Heon Sang HS Bae Su Kang SK Kim Soo Min SM Park Min M Lee Jae Kwan JK Kim Myung Jong MJ

Scientific reports 20160411

The chemical vapor deposition (CVD) method to obtain tailored graphene as a transparent and flexible gas barrier has been developed. By separating nucleation step from growth, we could reduce early graphene nucleation density and thus induce better stitching between domain boundaries in the second growth step. Furthermore, two step growth in conjunction with electrochemical polishing of Cu foils achieved large graphene domains and improved graphene quality with minimized defects. The performance ...[more]

PMID: 27063180

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