A structural stability diagram of multiple vacancies and defect self-healing in graphene

Lu Wang; Feng Yan; Helen L.W. Chan; Feng Ding

doi:10.1039/c2nr32308g

A structural stability diagram of multiple vacancies and defect self-healing in graphene

Lu Wang, Feng Yan, Helen L.W. Chan, Feng Ding

Research output: Journal article publication › Journal article › Academic research › peer-review

14 Citations (Scopus)

Abstract

Various types of multiple vacancies (MVs) in graphene nanoribbons (GNRs) and graphene are explored by quantum calculations. It is surprising that their relative stabilities highly depend on the width of the GNRs and thus is significantly different from those in graphene. A diagram of various MVs in GNRs is drawn and it is predicated that the hole in both GNRs and graphene can be annihilated. A new type of the MVs, which contains pentagon pairs and octagons (5/58), shows exceptional stability in GNRs. This study reveals the uniqueness of GNRs and a mechanism of defect self-healing in GNRs and graphene.

Original language	English
Pages (from-to)	7489-7493
Number of pages	5
Journal	Nanoscale
Volume	4
Issue number	23
DOIs	https://doi.org/10.1039/c2nr32308g
Publication status	Published - 7 Dec 2012

ASJC Scopus subject areas

General Materials Science

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10.1039/c2nr32308g

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abstract = "Various types of multiple vacancies (MVs) in graphene nanoribbons (GNRs) and graphene are explored by quantum calculations. It is surprising that their relative stabilities highly depend on the width of the GNRs and thus is significantly different from those in graphene. A diagram of various MVs in GNRs is drawn and it is predicated that the hole in both GNRs and graphene can be annihilated. A new type of the MVs, which contains pentagon pairs and octagons (5/58), shows exceptional stability in GNRs. This study reveals the uniqueness of GNRs and a mechanism of defect self-healing in GNRs and graphene.",

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AB - Various types of multiple vacancies (MVs) in graphene nanoribbons (GNRs) and graphene are explored by quantum calculations. It is surprising that their relative stabilities highly depend on the width of the GNRs and thus is significantly different from those in graphene. A diagram of various MVs in GNRs is drawn and it is predicated that the hole in both GNRs and graphene can be annihilated. A new type of the MVs, which contains pentagon pairs and octagons (5/58), shows exceptional stability in GNRs. This study reveals the uniqueness of GNRs and a mechanism of defect self-healing in GNRs and graphene.

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JF - Nanoscale

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A structural stability diagram of multiple vacancies and defect self-healing in graphene

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