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Aqueous precursor of F-doped SnO2 was prepared starting with hydrated Sn (IV) chloride, ammonium fluoride and water. Polyvinyl alcohol (Mol. Wt, 22000), a sol stabilizer was used for better adherence to glass substarte. Both the dipping and the spinning techniques were used to deposit layers of different thicknesses (200 to 650 š 10 nm). Air drying and subsequent curing at ~ 450°C in air yielded tetragonal...
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