Pure and antimony doped tin oxide thin films were deposited on glass and qu
artz plates by spray pyrolysis method. Structural, electrical and optical p
roperties of these films were studied by varying the substrate temperature
and antimony concentration. The best electro-optic properties obtained were
, resistivity as low as 9 x 10(-4) Omega cm and average transmission of 80%
in the visible region, at the substrate temperature of 400 degrees C with
the antimony concentration of 9 at%. While doping, change in preferred orie
ntation was observed from [1 1 0] to [2 0 0]. The optical investigation sho
wed that, depending upon the doping concentration, the antimony doped films
had direct allowed transitions in the range 4.13-4.22 eV and indirect allo
wed transitions in the range 2.54-2.65 eV. (C) 1999 Elsevier Science B.V. A
ll rights reserved.