Strain-inducing photochemical chlorination of graphene nanoribbons on SiC (0001)

As different low-dimensional materials are sought to be incorporated into microelectronic devices, graphene integration is dependent on the development of band gap opening strategies. Amidst the different methods currently investigated, application of strain and use of electronic quantum confinement...

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Detalhes bibliográficos
Autores: Copetti, Gabriela, Nunes, Eduardo Horbach, Feijó, Tais Orestes, Galves, Lauren Aranha, Heilmann, Martin, Soares, Gabriel Vieira, Lopes, J. M. J., Radtke, Claudio
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2021
País:Brasil
Recursos:Universidade Federal do Rio Grande do Sul (UFRGS)
Repositório:Repositório Institucional da UFRGS
Idioma:inglês
OAI Identifier:oai:www.lume.ufrgs.br:10183/219698
Acesso em linha:http://hdl.handle.net/10183/219698
Access Level:Acceso aberto
Palavra-chave:Grafeno
Cloração fotoquímica
Nanofitas
Graphene
Nanoribbons
SiC
Strain
Chlorine
XPS
Raman
Descrição
Resumo:As different low-dimensional materials are sought to be incorporated into microelectronic devices, graphene integration is dependent on the development of band gap opening strategies. Amidst the different methods currently investigated, application of strain and use of electronic quantum confinement have shown promising results. In the present work, epitaxial graphene nanoribbons (GNR), formed by surface graphitization of SiC (0001) on crystalline step edges, were submitted to photochemical chlorination. The incorporation of Cl into the buffer layer underlying graphene increased the compressive uniaxial strain in the ribbons. Such method is a promising tool for tuning the band gap of GNRs.