Observation of the unexpected morphology of graphene wrinkle on copper substrate

Abstract Graphene, a two-dimensional material, has a wide range of unique properties and could be used in the development of varieties of mechanic, electronic and photonic devices, therefore methods to synthesis large-area high-quality graphene films are urgently required. Chemical vapor deposition...

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Autores principales:	Wen Wang, Shudu Yang, Ashu Wang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/76143848ba6840e181a44acdf935deaa
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spelling	oai:doaj.org-article:76143848ba6840e181a44acdf935deaa2021-12-02T16:06:21ZObservation of the unexpected morphology of graphene wrinkle on copper substrate10.1038/s41598-017-08159-82045-2322https://doaj.org/article/76143848ba6840e181a44acdf935deaa2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08159-8https://doaj.org/toc/2045-2322Abstract Graphene, a two-dimensional material, has a wide range of unique properties and could be used in the development of varieties of mechanic, electronic and photonic devices, therefore methods to synthesis large-area high-quality graphene films are urgently required. Chemical vapor deposition (CVD) has been of particular interest recently due to its simplicity and low cost. However, because of the mismatch of thermal expansion coefficients, high densities of wrinkles are commonly observed. Despite their prevalence and potential impact on large-scale graphene properties, relatively little is known about their structural morphology and formation mechanism. In this article, morphologies of graphene obtained by CVD are experimentally investigated by an atomic force microscope (AFM) and results show that the profiles of wrinkles are much larger than they should be. By using theoretical methods and molecular dynamics simulations (MD), we find internal molecules created during CVD process which supply additional pressure is the main mechanism.Wen WangShudu YangAshu WangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-6 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Wen Wang Shudu Yang Ashu Wang Observation of the unexpected morphology of graphene wrinkle on copper substrate
description	Abstract Graphene, a two-dimensional material, has a wide range of unique properties and could be used in the development of varieties of mechanic, electronic and photonic devices, therefore methods to synthesis large-area high-quality graphene films are urgently required. Chemical vapor deposition (CVD) has been of particular interest recently due to its simplicity and low cost. However, because of the mismatch of thermal expansion coefficients, high densities of wrinkles are commonly observed. Despite their prevalence and potential impact on large-scale graphene properties, relatively little is known about their structural morphology and formation mechanism. In this article, morphologies of graphene obtained by CVD are experimentally investigated by an atomic force microscope (AFM) and results show that the profiles of wrinkles are much larger than they should be. By using theoretical methods and molecular dynamics simulations (MD), we find internal molecules created during CVD process which supply additional pressure is the main mechanism.
format	article
author	Wen Wang Shudu Yang Ashu Wang
author_facet	Wen Wang Shudu Yang Ashu Wang
author_sort	Wen Wang
title	Observation of the unexpected morphology of graphene wrinkle on copper substrate
title_short	Observation of the unexpected morphology of graphene wrinkle on copper substrate
title_full	Observation of the unexpected morphology of graphene wrinkle on copper substrate
title_fullStr	Observation of the unexpected morphology of graphene wrinkle on copper substrate
title_full_unstemmed	Observation of the unexpected morphology of graphene wrinkle on copper substrate
title_sort	observation of the unexpected morphology of graphene wrinkle on copper substrate
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/76143848ba6840e181a44acdf935deaa
work_keys_str_mv	AT wenwang observationoftheunexpectedmorphologyofgraphenewrinkleoncoppersubstrate AT shuduyang observationoftheunexpectedmorphologyofgraphenewrinkleoncoppersubstrate AT ashuwang observationoftheunexpectedmorphologyofgraphenewrinkleoncoppersubstrate
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Observation of the unexpected morphology of graphene wrinkle on copper substrate

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