V. S. Wozniak-Levushkina, A. A. Arapova, D. A. Spassky, I. V. Nikiforov, B. I. Zadneprovskii, “Luminescent properties of solid solutions of yttrium-scandium phosphates doped with europium ions”, Fizika Tverdogo Tela, 2022, Volume 64, Issue 12,Pages <nobr>1925

Dielectrics

Luminescent properties of solid solutions of yttrium-scandium phosphates doped with europium ions

V. S. Wozniak-Levushkina^a, A. A. Arapova^a, D. A. Spassky^b, I. V. Nikiforov^c, B. I. Zadneprovskii^d

^a Lomonosov Moscow State University, Faculty of Physics, Moscow, Russia
^b Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow, Russia
^c Lomonosov Moscow State University, Faculty of Chemistry, Moscow, Russia
^d All-Russian Research Institute of Synthetic Minerals, Alexandrov, Russia

Abstract: The luminescent properties of solid solutions Y$_{1-x}$Sc$_x$PO$_4$ : 0.5 mol.% Eu$^{3+}$ ($x$ = 0, 0.2, 0.4, 0.5, 0.6, 0.8, 1) under excitation by ultraviolet and vacuum-ultraviolet radiation were studied. The influence of disorder of the crystal structure in solid solutions on the structure of Eu$^{3+}$ luminescence spectra is shown. A non-linear dependence of values of the optical band gap on solid solution composition was obtained and a model was suggested to explain this effect.

Keywords: energy transfer, luminescence, solid solutions, ScPO$_4$ : Eu$^{3+}$, YPO$_4$ : Eu$^{3+}$.

Received: 25.07.2022
Revised: 25.07.2022
Accepted: 26.07.2022

DOI: 10.21883/FTT.2022.12.53644.449