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dc.contributor.authorBaah, Marian
dc.contributor.authorObraztsov, Petr
dc.contributor.authorPaddubskaya, Alesia
dc.contributor.authorBiciunas, Andrius
dc.contributor.authorSuvanto, Sari
dc.contributor.authorSvirko, Yuri
dc.contributor.authorKuzhir, Polina
dc.contributor.authorKaplas, Tommi
dc.date.accessioned2020-03-09T11:39:00Z
dc.date.available2020-03-09T11:39:00Z
dc.date.issued2020
dc.identifier.urihttps://erepo.uef.fi/handle/123456789/8047
dc.description.abstractWe demonstrate that predepositing a nanometrically thin nickel film on a dielectric surface is sufficient to transform an amorphous pyrolyzed photoresist film (PPF) into a graphitic film (GRF) enriched with nickel particles. The GRF shows 3 orders of magnitude higher carrier mobility than the amorphous PPF, whereas its electrical conductivity doubles after etching away the nickel remains. The pronounced 2D peak in the Raman spectrum, almost dispersionless absorbance in the spectral range of 750–2000 nm, and the saturable absorption coefficient indicate that GRF possesses a graphene-like band structure. The proposed cost-efficient and scalable synthesis route opens avenues toward fabrication of micron size patterned graphitic structures of any shape directly on a dielectric substrate. Having graphene-like transport and electrical properties at 20 times higher absorbance than the single-layer graphene, GRF is attractive for fabrication of fast modulators for optical radiation, bolometers, and other photonics and optoelectronic devices that require enhanced optical absorption.
dc.language.isoenglanti
dc.publisherAmerican Chemical Society (ACS)
dc.relation.ispartofseriesAcs applied materials and interfaces
dc.relation.urihttp://dx.doi.org/10.1021/acsami.9b18906
dc.rightsAll rights reserved
dc.subjectgraphitic thin film (GRF)
dc.subjectpyrolyzed photoresist film (PPF)
dc.subjectgraphene
dc.subjectdirect deposition
dc.subjectoptical properties
dc.subjectelectrical characterization
dc.subjectabsorption
dc.subjecttransport properties
dc.titleElectrical, Transport, and Optical Properties of Multifunctional Graphitic Films Synthesized on Dielectric Surfaces by Nickel Nanolayer-Assisted Pyrolysis
dc.description.versionfinal draft
dc.contributor.departmentDepartment of Physics and Mathematics, activities
dc.contributor.departmentDepartment of Chemistry, activities
uef.solecris.id68530854en
dc.type.publicationTieteelliset aikakauslehtiartikkelit
dc.rights.accessrights© American Chemical Society
dc.relation.doi10.1021/acsami.9b18906
dc.description.reviewstatuspeerReviewed
dc.format.pagerange6226-6233
dc.relation.issn1944-8244
dc.relation.issue5
dc.relation.volume12
dc.rights.accesslevelopenAccess
dc.type.okmA1
uef.solecris.openaccessEi


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