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Defects guided wrinkling in graphene on copper substrate
Pang ZQ(庞振乾); Deng B; Liu ZF; Peng HL; Wei YJ(魏宇杰)
Source PublicationCARBON
AbstractPristine graphene depositing on metallic substrates often wrinkles when the film-substrate system undergoes a temperature drop from the chemical vapor deposition (CVD) chamber to ambient environment. The pattern of wrinkles is governed by the crystallographic planes of the substrates and the defects in the film. In this paper, we report how commonly seen Stone-Wales defects and grain boundaries (GBs) influence the morphology of graphene on different planes of single crystalline copper substrate. Stone-Wales defects weaken the bending stiffness in graphene, and result in wrinkling along the defect direction. In the presence of GBs, primary wrinkles are always parallel to the GB direction, and there are also secondary wrinkles perpendicular to the GB. In combination with planes of the substrate and the orientation of defects, we demonstrate that we may manipulate wrinkling patterns for possible engineering applications. (C) 2018 Elsevier Ltd. All rights reserved.
KeywordWrinkling Graphene Grain boundary Stone-wales defects Binding energy
Indexed BySCI ; EI
WOS IDWOS:000456710500079
WOS Research AreaChemistry, Physical ; Materials Science, Multidisciplinary
WOS SubjectChemistry ; Materials Science
Funding OrganizationNational Natural Science Foundation of China [11425211]
ContributorWei, YJ ; Liu, ZF ; Peng, HL
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Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.{Pang, Zhenqian、Wei, Yujie} Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China
2.{Deng, Bing、Liu, Zhongfan、Peng, Hailin} Peking Univ, Coll Chem & Mol Engn, BNLMS, Ctr Nanochem CNC, Beijing 100871, Peoples R China
3.{Liu, Zhongfan、Peng, Hailin} BGI, Beijing 100094, Peoples R China
4.{Pang, Zhenqian、Wei, Yujie} Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Pang ZQ,Deng B,Liu ZF,et al. Defects guided wrinkling in graphene on copper substrate[J]. CARBON,2019,143:736-742.
APA 庞振乾,Deng B,Liu ZF,Peng HL,&魏宇杰.(2019).Defects guided wrinkling in graphene on copper substrate.CARBON,143,736-742.
MLA 庞振乾,et al."Defects guided wrinkling in graphene on copper substrate".CARBON 143(2019):736-742.
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