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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.date.accessioned2014-12-05T13:38:53Z
dc.date.created2014-12-01
dc.date.issued2014-12-01
dc.identifier.citationZhang, K.; Arroyo, M. Understanding and strain-engineering wrinkle networks in supported graphene through simulations. "Journal of the mechanics and physics of solids", 01 Desembre 2014, vol. 72, p. 61-74.
dc.identifier.issn0022-5096
dc.identifier.urihttp://hdl.handle.net/2117/24943
dc.description.abstractWrinkle networks are ubiquitous buckle-induced delaminations in supported graphene, which locally modify the electronic structure and degrade device performance. Although the strong property-deformation coupling of graphene can be potentially harnessed by strain engineering, it has not been possible to precisely control the geometry of wrinkle networks. Through numerical simulations based on an atomistically informed continuum theory, we understand how strain anisotropy, adhesion and friction govern spontaneous wrinkling. We then propose a strategy to control the location of wrinkles through patterns of weaker adhesion. This strategy is deceptively simple, and can in fact fail in several ways, particularly under biaxial compression. However, within bounds set by the physics of wrinkling, it is possible to robustly create by strain a variety of wrinkle network geometries and junction configurations. Graphene is nearly unstrained in the planar regions bounded by wrinkles, highly curved along wrinkles, and highly stretched and curved at junctions, which can either locally attenuate or amplify the applied strain depending on their configuration. These mechanically self-assembled networks are stable under the pressure produced by an enclosed fluid and form continuous channels, opening the door to nano-fluidic applications.
dc.format.extent14 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Matemàtica aplicada a les ciències
dc.subject.lcshSemiconductor industrial equipment industry
dc.subject.otherGraphene
dc.subject.otherWrinkles
dc.subject.otherBlisters
dc.subject.otherStrain engineering
dc.subject.otherBuckling
dc.subject.otherELASTIC MEMBRANES
dc.subject.otherCARBON NANOTUBES
dc.subject.otherFILMS
dc.subject.otherADHESION
dc.subject.otherSTRESS
dc.subject.otherSHEETS
dc.subject.otherSCATTERING
dc.subject.otherSUBSTRATE
dc.subject.otherTRANSPORT
dc.subject.otherDEFECTS
dc.titleUnderstanding and strain-engineering wrinkle networks in supported graphene through simulations
dc.typeArticle
dc.subject.lemacSemiconductors -- Mètodes de simulació
dc.contributor.groupUniversitat Politècnica de Catalunya. LACÀN - Mètodes Numèrics en Ciències Aplicades i Enginyeria
dc.identifier.doi10.1016/j.jmps.2014.07.012
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0022509614001501
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac15325903
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
dc.date.lift10000-01-01
local.citation.authorZhang, K.; Arroyo, M.
local.citation.publicationNameJournal of the mechanics and physics of solids
local.citation.volume72
local.citation.startingPage61
local.citation.endingPage74


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