Preparation and characterization of thin films of TiO2PbO and TiO2Bi2O3 compositions

Single and multilayer thin films of PbTiO 3 , PbTi 4 O 9 and TiO 2 Bi 2 O 3 compositions have been prepared on glass and amorphous silica substrates by using the dip-coating technique. After drying and densification, these films have a high optical quality. They have been characterized by the optical transmission technique and XPS. For certain values of their thickness they present almost flat transmission characteristics in the visible range and can be used as achromatic beam splitter or neutral-colored solar-energy-reflecting windows. Their use as a passive optical waveguide with a propagation of up to 4 modes at γ = 632.8 nm is also reported.