Abstract
In order to prepare tin dioxide (SnO 2) based films by the pyrosol technique, different mixtures of tin precursors (chlorinated and nonchlorinated salts) and solvents (methanol, butanol and acetylacetone) have been tested. Depending on the surface aspect, the obtained deposits have been classified into three categories; there are smooth, slightly faceted and faceted surfaces. Smooth surfaces are obtained when the solvent has a high nebulization rate or when the salt has a high molecular weight. The development of facets occurs when the salt is light or when gaseous HCl is present in the pyrolysis region. The optical and electrical characteristics of the corresponding films are also discussed.
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