title: Temporospatial Control of Graphene Wettability.
abstract: The reversible migration of adatoms along a basal plane of graphene under electrical bias is experimentally demonstrated. Single-layer graphene oxide with partial oxygen adatom coverage is utilized for this demonstration. The intensity ratio of G and G' Raman modes is used to determine the oxygen adatoms migration. Finally, reversible wettability property of graphene due to oxygen adatom migration is demonstrated.
authors.affiliation: Department of Environmental Engineering, Inha University, 100 Inha-ro, Nam-gu, Incheon, 402-751, Republic of Korea.
authors.forename: Kalimuthu
authors.initials: K
authors.lastname: Vijayarangamuthu
authors.affiliation: Department of Environmental Engineering, Inha University, 100 Inha-ro, Nam-gu, Incheon, 402-751, Republic of Korea.
authors.forename: Seungbae
authors.initials: S
authors.lastname: Ahn
authors.affiliation: Department of Materials Science and Engineering, Department of Energy System Research, Ajou University, Woncheon-Dong, Yeongtong-Gu, Suwon, 443-739, Republic of Korea.
authors.forename: Hyungtak
authors.initials: H
authors.lastname: Seo
authors.affiliation: Department of Mechanical Engineering, Inha University, 100 Inha-ro, Nam-gu, Incheon, 402-751, Republic of Korea.
authors.forename: Sang-Hee
authors.initials: SH
authors.lastname: Yoon
authors.affiliation: School of Materials Science and Engineering, Kumoh National Institute of Technology, Gumi, Gyeongbuk, 730-701, Republic of Korea.
authors.forename: Cheol-Min
authors.initials: CM
authors.lastname: Park
authors.affiliation: Department of Environmental Engineering, Inha University, 100 Inha-ro, Nam-gu, Incheon, 402-751, Republic of Korea.
authors.forename: Ki-Joon
authors.initials: KJ
authors.lastname: Jeon
keywords: Raman; adatoms; graphene; graphene oxide; migration; single layers