PZT films deposited by a hydrothermal method and characterizations

Pb(Zr0.52,Ti0.48)O3 (PZT) polycrystalline films were produced by a hydrothermal synthesis on titanium substrates. Autoclaves were put in a sand bath with a temperature lower than 200 °C. Hydroxide potassium KOH (4 mol l−1) was used as the mineralizer and Pb(NO3)2, ZrOCl2·8H2O, TiO2 as the precursors. This new hydrothermal treatment is a simplified process of the already reported ones. Results of a first approach to the structure of the “gel” leading to the films by X-ray absorption spectroscopy (XAS) and piezoelectric measurements are presented.