Abstract
We have studied the effect of Bi3+ and Ca2+ cation additions and partial Si, P, and V substitutions for Mo on the photoluminescence of NaY1−x Eu x (MoO4)2 scheelite-like red phosphors. The results demonstrate that the photoluminescence intensity in NaY1 − x Eux(MoO4)2 doped with Bi3+ and Ca2+ increases with europium concentration, up to x = 0.5, without concentration quenching. When the atomic fraction of Bi3+ is 0.2, it has a sensitizing effect on Eu3+. Ca2+ doping to an atomic fraction of 0.45 also increases the photoluminescence intensity. Partial Si, P, and V substitutions for Mo have little effect on the photoluminescence intensity.
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Original Russian Text © E.S. Zolotova, M.I. Rakhmanova, V.V. Sokolov, E.M. Uskov, 2011, published in Neorganicheskie Materialy, 2011, Vol. 47, No. 11, pp. 1368–1371.
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Zolotova, E.S., Rakhmanova, M.I., Sokolov, V.V. et al. Influence of bismuth and calcium on the luminescence intensity of NaY1 − x Eu x (MoO4)2 phosphors. Inorg Mater 47, 1249–1252 (2011). https://doi.org/10.1134/S0020168511100244
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DOI: https://doi.org/10.1134/S0020168511100244