Advanced materials based on tin dioxide are widely studied because of their properties and their multiple applications. These materials can be used as transparent conducting oxide (TCO), but also as a part of photovoltaic cell or in the design of solid state gas sensors. The field of applications depends on the structural and morphological properties of the thin film. A relatively new alternative to the common additives, to control these properties is represented by polymeric additives. .

This paper reports on thin layers of tin dioxide obtained by cathodic electrodeposition on tin substrate. Tin (II) chloride with different concentrations was used as precursors.

The deposition process was optimized by varying the deposition potential, the deposition duration and respectively the additives type and concentration. Copolymers of maleic anhydride with controlled hydrophobia (vinyl acetate/methyl methacrylate) were added in the precursor solution for tailoring the surface morphology.

The structural and surface properties of the films were investigated by X-ray diffraction, atomic force microscopy, contact angle measurements and correlations composition-morphology-tehnological parameters were established.

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