The effect of the ion-exchange treatment and gamma-irradiation on the spectra of phosphate glasses doped with europium

Physical materials technology

Spectroscopic investigation of boron-phosphate glasses of variable alkali compositions, doped with europium, revealed growth of Eu{3}+ concentration and reducement of Eu{2}+ concentration in case of replacement of Li by Na. Glasses of variable compositions were treated in molten salt, as a result one could see growth of Eu{2}+ concentration and reducement of Eu{3}+concentration. It has been shown that ion-exchange treatment increases the amount of hole PO[4]{2-} defects caused by gamma-radiation.