Crystallographic Orientation in Pure and Aluminum-Doped Zinc Oxide Thin Films Prepared by Sol–Gel Technique |
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| Authors: | Radhouane Bel Hadj Tahar Noureddine Bel Hadj Tahar |
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| Affiliation: | Département de Physique Chimie, Institut Préparatoire aux Etudes d'Ingénieurs de Sfax, Universitédu Sud, Sfax 3000, Tunisie; Département de Chimie, Facultéde Sciences de Monastir, Universitédu Centre, Route de Kairouan, 5000 Monastir, Tunisie |
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| Abstract: | Novel sol–gel processes for the preparation of grain-oriented thin films of pure and aluminum-doped zinc oxide (AZO) are reported. Using various stabilizing ligands, oxide films with different degree of c -axis orientation could be prepared on amorphous substrates. The origin of orientation in sol–gel-derived ZnO and AZO films is investigated. The texture selection of ZnO films is independent of the heat-treatment schedule but sensitive to the precursor system. The electrical properties of the films do not depend significantly on the crystallographic orientation. The film visible transmittance remained higher than 90% even after vacuum annealing. |
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