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dc.contributor.authorZhang, Kuan
dc.contributor.authorArroyo Balaguer, Marino
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Matemàtica Aplicada III
dc.identifier.citationZhang, K.; Arroyo, M. Adhesion and friction control localized folding in supported graphene. "Journal of applied physics", Maig 2013, vol. 113, núm. 19, p. 193501 -1-193501 -8.
dc.description.abstractGraphene deposited on planar surfaces often exhibits sharp and localized folds delimiting seemingly planar regions, as a result of compressive stresses transmitted by the substrate. Such folds alter the electronic and chemical properties of graphene, and therefore, it is important to understand their emergence, to either suppress them or control their morphology. Here, we study the emergence of out-of-plane deformations in supported and laterally strained graphene with high-fidelity simulations and a simpler theoretical model. We characterize the onset of buckling and the nonlinear behavior after the instability in terms of the adhesion and frictional material parameters of the graphene-substrate interface. We find that localized folds evolve from a distributed wrinkling linear instability due to the nonlinearity in the van der Waals graphene-substrate interactions. We identify friction as a selection mechanism for the separation between folds, as the formation of far apart folds is penalized by the work of friction. Our systematic analysis is a first step towards strain engineering of supported graphene, and is applicable to other compressed thin elastic films weakly coupled to a substrate.
dc.publisherAmerican Institute of Physics (AIP)
dc.subjectÀrees temàtiques de la UPC::Física::Física de l'estat sòlid
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Matemàtica aplicada a les ciències
dc.subject.otherchemical vapour deposition
dc.subject.othercompressive strength
dc.subject.otherthin films
dc.titleAdhesion and friction control localized folding in supported graphene
dc.contributor.groupUniversitat Politècnica de Catalunya. LACÀN - Mètodes Numèrics en Ciències Aplicades i Enginyeria
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/FP7/240487/EU/Predictive models and simulations in nano- and biomolecular mechanics: a multiscale approach/PREDMODSIM
local.citation.authorZhang, K.; Arroyo, M.
local.citation.publicationNameJournal of applied physics
local.citation.startingPage193501 -1
local.citation.endingPage193501 -8

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