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Understanding and strain-engineering wrinkle networks in supported graphene through simulations
dc.contributor.author | Zhang, Kuan |
dc.contributor.author | Arroyo Balaguer, Marino |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Matemàtica Aplicada III |
dc.date.accessioned | 2014-12-05T13:38:53Z |
dc.date.created | 2014-12-01 |
dc.date.issued | 2014-12-01 |
dc.identifier.citation | Zhang, 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.issn | 0022-5096 |
dc.identifier.uri | http://hdl.handle.net/2117/24943 |
dc.description.abstract | Wrinkle 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.extent | 14 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors |
dc.subject | Àrees temàtiques de la UPC::Matemàtiques i estadística::Matemàtica aplicada a les ciències |
dc.subject.lcsh | Semiconductor industrial equipment industry |
dc.subject.other | Graphene |
dc.subject.other | Wrinkles |
dc.subject.other | Blisters |
dc.subject.other | Strain engineering |
dc.subject.other | Buckling |
dc.subject.other | ELASTIC MEMBRANES |
dc.subject.other | CARBON NANOTUBES |
dc.subject.other | FILMS |
dc.subject.other | ADHESION |
dc.subject.other | STRESS |
dc.subject.other | SHEETS |
dc.subject.other | SCATTERING |
dc.subject.other | SUBSTRATE |
dc.subject.other | TRANSPORT |
dc.subject.other | DEFECTS |
dc.title | Understanding and strain-engineering wrinkle networks in supported graphene through simulations |
dc.type | Article |
dc.subject.lemac | Semiconductors -- Mètodes de simulació |
dc.contributor.group | Universitat Politècnica de Catalunya. LACÀN - Mètodes Numèrics en Ciències Aplicades i Enginyeria |
dc.identifier.doi | 10.1016/j.jmps.2014.07.012 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://www.sciencedirect.com/science/article/pii/S0022509614001501 |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 15325903 |
dc.description.version | Postprint (published version) |
dc.relation.projectid | info:eu-repo/grantAgreement/EC/FP7/240487/EU/Predictive models and simulations in nano- and biomolecular mechanics: a multiscale approach/PREDMODSIM |
dc.date.lift | 10000-01-01 |
local.citation.author | Zhang, K.; Arroyo, M. |
local.citation.publicationName | Journal of the mechanics and physics of solids |
local.citation.volume | 72 |
local.citation.startingPage | 61 |
local.citation.endingPage | 74 |
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