Some Properties of Zinc Oxide Thin Films Obtained by Cathodic Electrodeposition

Mathematics – Logic

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Ii-Vi Semiconductors, Structure And Morphology, Thickness, Crystalline Orientation And Texture, Electrodeposition, Electroplating

Scientific paper

This paper explains some properties of wide-band gap zinc oxide (ZnO) thin films cathodic electrodeposited from an aqueous solution composed 0,1 M zinc nitrate at 65°C. Transparent conducting optically glass coated with tin oxide (SnO2) was used as cathode. Preparing of the ZnO films, structural, morphological and optical characteristics are reported in this paper. The ZnO film was characterized by X-ray diffraction and Scanning Electron Microscope. Also the optical transmission spectrum was recorded. The films are polycrystalline with grains in size of 0,1μm to 0,2μm. The optical band gap study gave a direct gap of 3,4 eV. Zinc oxide (ZnO) is at present often used as transparent conductive oxides (TCO), especially in thin film solar cells.

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