Characterization of sol-gel thin films of TiO2-PbO, TiO2-Bi2O3 and TiO2-CeO2 compositions

Abstract

Single and multilayer sol-gel thin films of TiO2-PbO, TiO2-Bi2O3 and TiO2-CeO2 composition were deposited on glasses using the dip coating technique. The precursors included Ti(OPr(i))4 chemically modified by acetyl acetone and diluted in Pr(i)OH and sols of Pb(OAc)2, Bi(NO3)3 5H2O diluted in acetic acid. The TiO2-CeO2 sol was prepared by mixing Ce(NH4)2(NO3)6 in ethanol and then adding Ti(O-iso-C3H7)4. Structure texture and homogeneity of their main constituents was established by XRD, XPS, SIMS and SEM-EDX techniques as a function of heat treatments.