Issue 23, 2012
From the journal:

Nanoscale

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

Lu Wang,b   Feng Yan,*b   Helen L. W. Chanb  and  Feng Ding*a  

* Corresponding authors

a Institute of Textile and Clothing, Hong Kong Polytechnic University, Kowloon, Hong Kong, People's of Republic of China
E-mail: tcfding@inet.polyu.edu.hk

b Department of Applied Physics, Hong Kong Polytechnic University, Kowloon, Hong Kong, People's of Republic of China
E-mail: apafyan@inet.polyu.edu.hk

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 (5/5|8), shows exceptional stability in GNRs. This study reveals the uniqueness of GNRs and a mechanism of defect self-healing in GNRs and graphene.

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

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Article information

DOI
https://doi.org/10.1039/C2NR32308G
Article type
Paper
Submitted
16 Aug 2012
Accepted
08 Oct 2012
First published
11 Oct 2012

Nanoscale, 2012,4, 7489-7493

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

L. Wang, F. Yan, H. L. W. Chan and F. Ding, Nanoscale, 2012, 4, 7489 DOI: 10.1039/C2NR32308G

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