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The wrinkle formation in graphene on transition metal substrate: a molecular dynamics study

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Title
The wrinkle formation in graphene on transition metal substrate: a molecular dynamics study
Author(s)
Chao Zhao; Fengning Liu; Xiao Kong; Tianying Yan; Feng Ding
Publication Date
2020-07
Journal
International Journal of Smart and Nano Materials, v.11, no.3, pp.277 - 287
Publisher
TAYLOR&FRANCIS
Abstract
© 2020 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.To explore the mechanism of the wrinkle formation in graphene on transition metal substrate, a molecular dynamics (MD) simulation package that allows us to simulate systems of millions of atoms was developed. Via the MD simulation, we reveal the detailed kinetics of wrinkles formation on a Cu substrate under compressive strain, from nucleation to one-dimensional propagation and then the splitting of a large wrinkle to a few smaller ones, which is in good conformity with experimental observation. Further study reveals that both friction and the adhesion between graphene and Cu substrate are critical for the wrinkle formation and wrinkles can be easily formed with a lower frictional force and/or a smaller adhesion. Finally, we have shown that impurities in graphene or substrates can greatly facilitate the nucleation of wrinkles. The systematic exploration of the wrinkle formation in graphene on a substrate is expected to facilitate the experimental designs for the controllable synthesis of high-quality graphene
URI
https://pr.ibs.re.kr/handle/8788114/7728
DOI
10.1080/19475411.2020.1820621
ISSN
1947-5411
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > 1. Journal Papers (저널논문)
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