Influence of the substrate on the crystalline properties of sprayed tin dioxide thin films

• Published in: Journal of crystal growth 1986, Vol.74 (2), p.439-442
• Main Authors: Fantini, M., Torriani, I.L., Constantino, C.
• Format: Article
• Language: English
• Subjects: Condensed matter: structure, mechanical and thermal properties; Exact sciences and technology; Physics; Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties); Thin film structure and morphology
• ISSN: 0022-0248; 1873-5002
• DOI: 10.1016/0022-0248(86)90135-1

Undoped tin dioxide films were produced by the conventional spraying method over five different substrates: commercial glass, fused quartz, monocrystalline Si, 7059 Corning glass and amorphous Si at different substrate temperatures ( T s ). For each kind of substrate, the temperature range in which the films became polycrystalline was determined using X-ray diffractometry. The amorphous to polycrystalline transition temperature ( T ap) was found to vary with the type of substrate used. From these results we concluded that for sprayed SnO 2 films the crystallinity of the films depends not only on the deposition temperature but also on the nature of the substrate. Preferential orientation in the [200] direction was noted for all the films deposited at T s < 490°C regardless of substrate nature and temperature.