Guided fractures in graphene mechanical diode-like structures.

Felix, Levi C; Galvao, Douglas S

Felix, Levi C; Galvao, Douglas S.

Afiliação

Felix LC; Applied Physics Department, 'Gleb Wataghin' Institute of Physics, State University of Campinas, Campinas, SP, 13083-970, Brazil. galvao@ifi.unicamp.br.
Galvao DS; Center for Computing in Engineering & Sciences, State University of Campinas, Campinas, SP, 13083-970, Brazil.

Phys Chem Chem Phys ; 24(22): 13905-13910, 2022 Jun 08.

Article em En | MEDLINE | ID: mdl-35621060

RESUMO

The concept of a diode is usually applied to electronic and thermal devices but very rarely for mechanical ones. A recently proposed fracture rectification effect in polymer-based structures with triangular void defects has motivated us to test these ideas at the nanoscale using graphene membranes. Using fully-atomistic reactive molecular dynamics simulations we showed that robust rectification-like effects exist. The fracture can be 'guided' to more easily propagate along one specific direction than its opposite. We also observed that there is an optimal value for the spacing between each void for the rectification effect.

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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Chem Chem Phys Assunto da revista: BIOFISICA / QUIMICA Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido

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