Preparation and characterization of nanocomposite TiO2/SnO2 films

Abstract

This work presents the preparation of nanocomposite TiO2/SnO2 films by using spray pyrolysis and followed by sol-gel technique from TiCl4 and SnCl4 solutions. Obtained films were characterized by XRD, SEM and photoconductivity measurement. It was found that in this method the nanocomposite TiO2/SnO2 films were constituted of nanosized TiO2 and SnO2 surrounded the TiO2 grains. The obtained nanocomposite TiO2/SnO2 materials were shown to have the photoconducting properties. A reason of these novel properties was discussed and practical applications of nanocomposite TiO2/SnO2 films were showed.