Couches minces de phosphates de titane par voie sol-gel

Colloidal solutions of ferroelectrics (KTiOPO 4 ) or ionic conductors (LiTi 2 (PO 4 ) 3 ) materials have been synthetized. These solutions have been used for thin film synthesis. They are obtained by polycondensation reactions between phosphoric acid esters PO(OH) 3-x (OR) x (with 0<x<3 and R=Et, n Bu,...) and titanium alkoxides. The ratio POH/Ti and the amount of hydrolysis are the parameters which control the condensation