SPECTROSCOPIC PROPERTIES OF CERIUM IN GLASSES AND THEIR COMPARISON WITH CRYSTALS

Glasses containing Ce were prepared by the sol-gel method at elevated temperatures. Two parallel series one in air and another in nitrogen a tmosphere, were obtained. The main constituent of the glasses was sili ca SiO2 obtained by hydrolysis of ethoxysilane (TEOS). Parallel series of glasses were prepared with addition of boron and aluminum. Spectro scopic properties of the glasses were mainly studied by absorption spe ctroscopy, luminescence spectroscopy and life-time measurements. The c omparison of the spectral properties of the glasses was made with exis ting information on spectroscopy of cerium in crystals and conventiona l glass. (C) 1998 Elsevier Science B.V. All rights reserved.