B. Correalozano et al., PHYSICOCHEMICAL PROPERTIES OF SNO2-SB2O5 FILMS PREPARED BY THE SPRAY-PYROLYSIS TECHNIQUE, Journal of the Electrochemical Society, 143(1), 1996, pp. 203-209
The properties of SnO2-Sb2O5 mixed-oxide films prepared by the spray p
yrolysis method were studied under different synthesis conditions. The
film density, measured by profilometry and by a spectrophotometric me
thod, was close to that reported in the literature for crystalline tin
dioxide. Analysis by energy dispersive spectrometry and x-ray photo-e
lectron spectroscopy showed that the Sb/Sn atom ratio in the films was
in all cases about 2.5 times larger with respect to that in the precu
rsor solution. Microstructural characterization by wide-angle x-ray sc
attering indicates that the deposits consist of large sized crystallit
es. The influence of the substrate temperature (T) on the average crys
tallite size (l) has shown that I decreases linearly with T. Scanning
electron microscopy showed that the surface of films thinner than 0.5-
0.8 mu m is flat with only a limited number of emerging particles.