Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/3912
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dc.contributor.authorOğurtani, Ömer Tarık-
dc.contributor.authorŞenyıldız, Doğukan-
dc.contributor.authorBüke, Zarife Göknur-
dc.date.accessioned2020-10-22T16:53:35Z-
dc.date.available2020-10-22T16:53:35Z-
dc.date.issued2018-05-
dc.identifier.citationOgurtani, O. T., Senyildiz, D., Cambaz Buke, G. (2018). Wrinkling of graphene because of the thermal expansion mismatch between graphene and copper. Surface and Interface Analysis, 50(5), 547-551.en_US
dc.identifier.issn1096-9918-
dc.identifier.issn0142-2421-
dc.identifier.urihttps://hdl.handle.net/20.500.11851/3912-
dc.identifier.urihttps://onlinelibrary.wiley.com/doi/full/10.1002/sia.6423-
dc.description.abstractWell-defined bundles of wrinkles are observed on the graphene-covered copper by using atomic force microscopy after chemical vapor deposition process. Their numerical analyses are performed by employing a set of formula deduced from classical elasticity theory of bent thin films with clamped boundary conditions. Here they are imposed by the banks of trenches associated with the reconstructed copper substrate surfaces, which suppress lateral movements of graphene monolayers and induce local biaxial stress. The wrinkling wavelength (lambda) and amplitude (A) are both measured experimentally (lambda = 100-160 nm and A = 2.5-3 nm) and calculated numerically (lambda = 167 nm and A = 3.0 nm) and found to be in good agreement. Wrinkle formation is attributed to the nonhydrostatic compression stresses induced on the graphene by the linear thermal expansion coefficient difference between graphene and copper during cooling. These mismatch stresses, which are varying strongly with the temperature, create temperature-dependent wrinkling wave formation that decreases in wavelength and increases in amplitude upon cooling below the crossover temperature of 1233 K, at which both values of linear thermal expansion coefficient are equal.en_US
dc.language.isoenen_US
dc.publisherWILEYen_US
dc.relation.ispartofSurface and Interface Analysisen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAtomic force microscopyen_US
dc.subjectcopperen_US
dc.subjectgrapheneen_US
dc.subjectstrainen_US
dc.subjectthermal stressesen_US
dc.subjectwrinklingen_US
dc.titleWrinkling of Graphene Because of the Thermal Expansion Mismatch Between Graphene and Copperen_US
dc.typeArticleen_US
dc.departmentFaculties, Faculty of Engineering, Department of Material Science and Nanotechnology Engineeringen_US
dc.departmentFakülteler, Mühendislik Fakültesi, Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümütr_TR
dc.identifier.volume50-
dc.identifier.issue5-
dc.identifier.startpage547-
dc.identifier.endpage551-
dc.relation.tubitakinfo:eu-repo/grantAgreement/TÜBİTAK/MAG/216M042en_US
dc.authorid0000-0001-9587-519X-
dc.identifier.wosWOS:000430307500003en_US
dc.identifier.scopus2-s2.0-85044206267en_US
dc.institutionauthorBüke, Zarife Göknur-
dc.identifier.doi10.1002/sia.6423-
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.scopusqualityQ2-
item.openairetypeArticle-
item.languageiso639-1en-
item.grantfulltextnone-
item.fulltextNo Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
crisitem.author.dept02.6. Department of Material Science and Nanotechnology Engineering-
Appears in Collections:Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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