New Luminescent BaBi2 – xEuxB2O7 Glassmaterials

Abstract

Bi-containing glasses BaBi_{2 – x}Eu_xB₂O₇ (x = 0.00, 0.05, 0.10, 0.20, 0.30, 0.40, 0.50) doped with Eu³⁺ is obtained. The dependence of the integral intensity of the luminescence on the Eu³⁺ concentration is revealed. The luminescence quenching starts at the Eu³⁺ concentrations above 0.20. Other conditions being equal, the maximum luminescence intensity is observed in the BaBi_1.5Eu_0.5B₂O₇ specimen. It is shown that the local environment of Eu³⁺ ions does not depend on the Eu³⁺ ion content in the studied concentration range.