Structural, morphological and temperature-tuned bandgap characteristics of CuS nano-flake thin films

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dc.authorscopusid23766993100
dc.authorscopusid57193666915
dc.authorscopusid35580905900
dc.authorscopusid7003589218
dc.contributor.authorIşık, M.
dc.contributor.authorTerlemezoğlu, Makbule
dc.contributor.authorGasanly, N.
dc.contributor.authorParlak, M.
dc.date.accessioned2023-04-20T08:05:57Z
dc.date.available2023-04-20T08:05:57Z
dc.date.issued2022
dc.departmentFakülteler, Fen Edebiyat Fakültesi, Fizik Bölümü
dc.description.abstractCopper sulfide (CuS) thin films were produced by radio-frequency (RF) magnetron sputtering method. Structural, morphological and optical characteristics of deposited CuS films were presented. X-ray diffraction pattern showed two intensive peaks associated with hexagonal crystalline structure. Scanning electron microscopy image indicated that CuS films have nano-flake structured. Raman spectrum was reported to show vibrational characteristics of the CuS nano-flake thin films. Two peaks associated with Cu–S and S–S vibrations were observed in the Raman spectrum. Transmission spectra were recorded at various temperatures between 10 and 300 K. The analyses accomplished considering Tauc expression demonstrated that direct bandgap energy decreases from 2.36 eV (at 10 K) to 2.22 eV (at 300 K). Temperature-bandgap dependency was analyzed considering Varshni and Bose-Einstein expressions to reveal bandgap at 0 K, rate of change of bandgap and Debye temperature. CuS nanoflake thin film may be used in optoelectronic and photocatalysis applications thanks to its direct and narrow bandgap energy characteristics. © 2022 Elsevier B.V.
dc.identifier.doi10.1016/j.physe.2022.115407
dc.identifier.issn1386-9477
dc.identifier.scopus2-s2.0-85134212755
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1016/j.physe.2022.115407
dc.identifier.urihttps://hdl.handle.net/20.500.11776/11127
dc.identifier.volume144
dc.identifier.wosWOS:000910864700006
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorTerlemezoğlu, Makbule
dc.language.isoen
dc.publisherElsevier B.V.
dc.relation.ispartofPhysica E: Low-Dimensional Systems and Nanostructures
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCopper sulfide
dc.subjectNanoflake
dc.subjectOptical properties
dc.subjectOptoelectronic applications
dc.subjectCopper compounds
dc.subjectEnergy gap
dc.subjectMagnetron sputtering
dc.subjectOptical films
dc.subjectRaman scattering
dc.subjectScanning electron microscopy
dc.subjectStatistical mechanics
dc.subjectSulfur compounds
dc.subjectThin films
dc.subjectBand gap energy
dc.subjectMorphological characteristic
dc.subjectNano-flakes
dc.subjectOptical characteristics
dc.subjectOptoelectronic applications
dc.subjectRadio frequency magnetron sputtering method
dc.subjectStructural characteristics
dc.subjectTemperature tuned
dc.subjectThin-films
dc.subjectX ray diffraction patterns
dc.subjectOptical properties
dc.titleStructural, morphological and temperature-tuned bandgap characteristics of CuS nano-flake thin films
dc.typeArticle

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