Ultrasonically sprayed ZnO:Co thin films: Growth and characterization

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dc.authoridDEMIRSELCUK, Barbaros/0000-0002-5264-5535
dc.contributor.authorDemirselcuk, Barbaros
dc.contributor.authorBilgin, Vildan
dc.date.accessioned2025-01-27T20:22:24Z
dc.date.available2025-01-27T20:22:24Z
dc.date.issued2013
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractIn this work, undoped and cobalt-doped ZnO thin films were deposited at 275 +/- 5 degrees C on glass substrates by the ultrasonic spray pyrolysis technique. The structural, electrical, optical and surface characterization of the films as a function of the cobalt concentration in the spraying solution were studied by means of x-ray diffractometer, current-voltage characteristics, UV-vis spectrophotometer and atomic force microscope, respectively. X-ray diffraction reveals that the films are polycrystalline in nature with preferred orientations of (002) for the ZnO: Co (0, 2, 4 at.%) and (1 0 0) for the ZnO: Co (6 at.%). The optical transmittance of all films was studied as a function of wavelength in the range of 300-1100 nm. They exhibit high transparency in the visible wavelength region with some interference fringes and sharp ultraviolet absorption edges. The optical band gap and Urbach energy values of the films were found in the range of 3.250-3.301 eV and 90-230 meV, respectively. The electrical studies for all films were carried out by using conductivity-temperature measurements and it was seen that the electrical conductivity of ZnO films decreases slightly depending on the increasing of Co doping. Also, Co doping increases both energies of donor-like traps and activation energy for ZnO films. The surface morphology was analyzed by atomic force microscope and a strong dependence on the cobalt incorporation was found. (C) 2013 Elsevier B.V. All rights reserved.
dc.description.sponsorshipCanakkale Onsekiz Mart University Scientific Research Projects Committee [2009/109]
dc.description.sponsorshipThis work was supported by the Canakkale Onsekiz Mart University Scientific Research Projects Committee under the project number 2009/109. Also, we thank to Ayse Kucukarslan for helpful discussion.
dc.identifier.doi10.1016/j.apsusc.2013.02.065
dc.identifier.endpage483
dc.identifier.issn0169-4332
dc.identifier.scopus2-s2.0-84876419598
dc.identifier.scopusqualityQ1
dc.identifier.startpage478
dc.identifier.urihttps://doi.org/10.1016/j.apsusc.2013.02.065
dc.identifier.urihttps://hdl.handle.net/20.500.12428/21862
dc.identifier.volume273
dc.identifier.wosWOS:000317581700071
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Bv
dc.relation.ispartofApplied Surface Science
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectZinc oxide
dc.subjectCo doped zinc oxide
dc.subjectOptical properties
dc.subjectElectrical conductivity
dc.subjectXRD
dc.subjectAFM
dc.titleUltrasonically sprayed ZnO:Co thin films: Growth and characterization
dc.typeArticle

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