Synthesis and Photoluminescence of Strontium Titanate Xerogels Doped with Terbium, Ytterbium and Europium
Terbium, ytterbium and europium doped strontium titanate thin films and undoped strontium titanate powder were synthesized using sol-gel method. Xerogel was deposited by spin-on technic on monocrystalline silicon and porous anodic alumina substrates formed on monocrystalline silicon. Structure and photoluminescence of obtained films were investigated. Doped strontium titanate xerogel films show photoluminescence spectra with emission bands caused by electron transitions of relevant rare earth dopant. The broad photoluminescence band of the undoped SrTiO3 powder at 300–400 nm is detected.