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Self-healing phenomena of graphene: potential and applications

Self-healing phenomena of graphene: potential and applications Abstract The present study investigates the self healing behavior of both pristine and defected single layer graphene using molecular dynamic simulation. Single layer graphene containing various defects like pre-existing vacancies and differently oriented pre-existing cracks were subjected to uniaxial tensile loading till fracture. Once the load was relaxed, the graphene was found to undergo self healing. It was observed that this self healing behaviour of cracks holds irrespective of the nature of pre-existing defects in the graphene sheet. Cracks of any lengthwere found to heal provided the critical crack opening distance lies within 0.3–0.5 nm for pristine sheet and also sheet with pre-existing defects. Detailed bond length analysis of the graphene sheetwas done to understand the mechanism of self healing of graphene. The paper also discusses the immense potential of the self healing phenomena of graphene in the field of graphene based sub-nano sensors for crack sensing. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nanoelectronics and Spintronics de Gruyter

Self-healing phenomena of graphene: potential and applications

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Publisher
de Gruyter
Copyright
Copyright © 2016 by the
eISSN
2352-3951
DOI
10.1515/naspin-2016-0001
Publisher site
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Abstract

Abstract The present study investigates the self healing behavior of both pristine and defected single layer graphene using molecular dynamic simulation. Single layer graphene containing various defects like pre-existing vacancies and differently oriented pre-existing cracks were subjected to uniaxial tensile loading till fracture. Once the load was relaxed, the graphene was found to undergo self healing. It was observed that this self healing behaviour of cracks holds irrespective of the nature of pre-existing defects in the graphene sheet. Cracks of any lengthwere found to heal provided the critical crack opening distance lies within 0.3–0.5 nm for pristine sheet and also sheet with pre-existing defects. Detailed bond length analysis of the graphene sheetwas done to understand the mechanism of self healing of graphene. The paper also discusses the immense potential of the self healing phenomena of graphene in the field of graphene based sub-nano sensors for crack sensing.

Journal

Nanoelectronics and Spintronics – de Gruyter

Published: Jul 1, 2016

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