Roles of Cobalt Doping on Structural and Optical of ZnO Thin Films by Ultrasonic Spray Pyrolysis

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dc.contributor.authorSabrina Roguai 1
dc.contributor.authorAbdelkader Djelloul 2
dc.date.accessioned2024-02-14T21:26:22Z
dc.date.available2024-02-14T21:26:22Z
dc.date.issued2021-05-10
dc.description/
dc.description.abstractHere we report a systematic study of structural, optical, and magnetic measure ments of Zn1-xCoxO (x = 0–0.22 at.%) by Ultrasound pyrolysis spray technique. The hexagonal wurtzite structure of our films is confirmed by X-ray diffraction with an average crystallite size estimated in the range of 18–30 nm. For the optical proprie ties, using the Levenberg–Marquardt least squares rule, the experimental transmis sion measurements were perfectly adapted to the transmission data calculated by a combination of the Wemple-DiDomenico model, the absorption coefficient of an electronic transition and the Tauc-Urbach model. The concentration of the NCo absorption centers and the oscillator intensity f of the d-d transition of Co2+ ions are determined by the Smakula method. The presence of high concentrations of localized states in the thin films is responsible for the reduction in the width of optical bandgap
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dc.identifier.citation2
dc.identifier.uriDOI: http://dx.doi.org/10.5772/intechopen.95920
dc.identifier.urihttp://dspace.univ-khenchela.dz:4000/handle/123456789/1027
dc.language.isoen
dc.publisher. Licensee IntechOpen, Thin Films
dc.relation.ispartofseries978-1-83881-993-4; 978-1-83881-993-4
dc.titleRoles of Cobalt Doping on Structural and Optical of ZnO Thin Films by Ultrasonic Spray Pyrolysis
dc.typeBook chapter
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