'Bubble-free' electrochemical delamination of CVD graphene films

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 introduce...

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Detalhes bibliográficos
Autores: Cherian, Christie Thomas, Giustiniano, Francesco, Martín Fernández, Íñigo, Andersen, Henrik, Balakrishnan, Jayakumar, Özyilmaz, Barbaros
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2015
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/415836
Acesso em linha:http://hdl.handle.net/10261/415836
https://api.elsevier.com/content/abstract/scopus_id/84926242124
Access Level:Acceso aberto
Palavra-chave:bubble
delamination
electrochemical
graphene
transfer
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Descrição
Resumo: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.