Special Features of Localization of Eu3+ Ion in the Matrix of (GdxY1–x)2O3: Eu3+ Solutions During Sol-Gel Synthesis of the Luminophor

V. V. Bakovets, T. D. Pivovarova, I. P. Dolgovesova, I. V. Korolkov, O. V. Antonova, S. I. Kozhemyachenko

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2 Citations (Scopus)


Sol-gel synthesis of the (GdxY1–x)2O3: Eu3+ solid solutions (3.5 mol %) allows for the increase in the energy efficiency of emission of the red luminophor. The study of distribution of the luminescence activator Eu3+ has revealed that these ions substitute the Gd3+ ones in the cationic sublattice of ternary solid solution. The Eu3+ ions are predominantly localized in the noncentrosymmetrical position C2 at x < 0.50 and in centrosymmetrical position C3i at x > 0.50. The increase in the Eu3+ ions concentration in the C3i position stabilizes the cubic high-temperature structure of the solid solution in comparison with the monoclinic phase. The solid solution with x = 0.75 has been found to be the most efficient luminophor.

Original languageEnglish
Pages (from-to)992-999
Number of pages8
JournalRussian Journal of General Chemistry
Issue number5
Publication statusPublished - 1 May 2018


  • europium cations localization
  • local lattice order
  • photoluminescence
  • rare-earth elements oxides
  • solid solution


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