title: 'Bubble-free' electrochemical delamination of CVD graphene films.
abstract: The production of large amounts of hydrogen bubbles, typical of electrochemical delamination methods based on the electrolysis of water, results in mechanical damage to graphene during the delamination, transfer, and drying steps. Here a novel 'bubble-free' delamination method is introduced which exploits the electrochemical dissolution of native copper oxide at a potential lower than that required for the formation of hydrogen bubbles, enabling the production of defect-free graphene stack.
authors.affiliation: Department of Physics, National University of Singapore, Singapore, 117542; Graphene Research Center, National University of Singapore, Singapore, 117542.
authors.forename: Christie Thomas
authors.initials: CT
authors.lastname: Cherian
authors.forename: Francesco
authors.initials: F
authors.lastname: Giustiniano
authors.forename: Iñigo
authors.initials: I
authors.lastname: Martin-Fernandez
authors.forename: Henrik
authors.initials: H
authors.lastname: Andersen
authors.forename: Jayakumar
authors.initials: J
authors.lastname: Balakrishnan
authors.forename: Barbaros
authors.initials: B
authors.lastname: Özyilmaz
keywords: bubble; delamination; electrochemical; graphene; transfer