Some physical properties of fluorine-doped SnO2 films prepared by spray pyrolysis |
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| Authors: | H H Afify R S Momtaz W A Badawy S A Nasser |
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| Affiliation: | (1) Department of Physics, National Research Centre, Dokki, Cairo, Egypt;(2) Department of Physics and Mathematics, Faculty of Engineering, Suez Canal University, Port-Said, Egypt;(3) Department of Chemistry, Cairo University, Egypt;(4) Department of Physics, Faculty of Science, Beni-Suef, Cairo University, Egypt |
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| Abstract: | Thin films of undoped and fluorine-doped tin oxide have been prepared on fused silica substrates by a spray pyrolysis technique. Structural, optical and electrical properties were studied. Fluorine doping increased the degree of crystallinity and preferred orientation as well as the figure of merit (23.9×10–3 at 0.5 µm). The refractive index,n, showed a considerable decrease (2.2–1.85) on fluorine doping. The direct allowed transition for fluorine-doped tin oxide was 0.1 eV higher than that of undoped material. |
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