Photoluminescence of terbium-organic complex in aerosol-gel-derived planarwaveguides

This work deals with the low-temperature preparation of optically active si lica-based materials. Tb3+-doped silica monolithic gels were elaborated at 40 degreesC. Tb3+-SSA-doped SiO2-TiO2 thin films were deposited by an origi nal sol-gel approach, the aerosol-gel process, and heat-treated at 150 degr eesC. Organic complexation of terbium ions was used to improve the active p roperties of doped silica gels and thin-film samples. Spectroscopic charact erisations are reported for these samples. Photoluminescence increase by a factor two was observed for complexation by sulphosalicylic acid.