INFLUENCE OF AN INTERMEDIATE ANNEALING AND SUBSTRATE NATURE ON STRUCTURAL AND OPTICAL PROPERTIES OF SnO 2 THIN FILMS (original) (raw)

Tin dioxide thin films doped with Sb have been prepared by sol-gel dip-coating technique. The effect of an intermediate annealing in its preparation is analyzed through X-ray reflectometry and electron microscopy. These results have shown that the density for films fired at 400 °C after each dip is higher than that of multi-dipped films prepared with a single annealing. Although the electrical conductivity is rather low, results of infrared optical transmission have shown that transmission decreases with increase of Sb doping concentration, as predicted by Drude’s theory. Results comparing depositions on different types of substrates are also shown.