MODIFIED SOL-GEL PROCESSING FOR FABRICATION OF LEAD TITANATE THIN-FILMS

Thin films of lead titanate were fabricated by chemically modified sol -gel processing. The complex alkoxides were prepared by reacting lead acetate with titanium tri-isopropoxide mono-acetylacetonate. Titanium tri-isopropoxide mono-acetylacetonate was synthesized by addition of a cetylacetone to titanium tetraisopropoxide as a chelating agent. Proce ssing parameters were systematically investigated to fabricate homogen eous and crack-free films. Thin films were deposited on the silica gla ss, Si(100), and Pt/MgO(100) substrates by dip-coating. X-Ray diffract ion analyses (XRD) were carried out for powder samples and thin films to examine the crystalline phase, crystallographic orientation and lat tice parameters.