Formation and characterization of sol–gel barium titanate

Sol–gel BaTiO3 has been obtained using a colloidal solution prepared by peptization of acetate derived gel with acetylacetone. IR spectroscopy studied the thermal destruction of organic components of the solution. Very thin films (thickness=44 nm) were deposited by using the dip-coating technique. The optical and dielectric properties of sol–gel BaTiO3 thin films were investigated in the visible spectral range.