Special Features of Localization of Eu3+ Ion in the Matrix of (GdxY1–x)2O3: Eu3+ Solutions During Sol-Gel Synthesis of the Luminophor
- Autores: Dolgovesova I.1, Korolkov I.1,2, Antonova O.1, Kozhemyachenko S.1, Bakovets V.1, Pivovarova T.1
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Afiliações:
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch
- Novosibirsk State University
- Edição: Volume 88, Nº 5 (2018)
- Páginas: 992-999
- Seção: Article
- URL: https://journals.rcsi.science/1070-3632/article/view/222200
- DOI: https://doi.org/10.1134/S1070363218050262
- ID: 222200
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Resumo
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.
Sobre autores
I. Dolgovesova
Nikolaev Institute of Inorganic Chemistry, Siberian Branch
Email: becambe@niic.nsc.ru
Rússia, pr. Akademika Lavrenteva 3, Novosibirsk, 630090
I. Korolkov
Nikolaev Institute of Inorganic Chemistry, Siberian Branch; Novosibirsk State University
Email: becambe@niic.nsc.ru
Rússia, pr. Akademika Lavrenteva 3, Novosibirsk, 630090; Novosibirsk
O. Antonova
Nikolaev Institute of Inorganic Chemistry, Siberian Branch
Email: becambe@niic.nsc.ru
Rússia, pr. Akademika Lavrenteva 3, Novosibirsk, 630090
S. Kozhemyachenko
Nikolaev Institute of Inorganic Chemistry, Siberian Branch
Email: becambe@niic.nsc.ru
Rússia, pr. Akademika Lavrenteva 3, Novosibirsk, 630090
V. Bakovets
Nikolaev Institute of Inorganic Chemistry, Siberian Branch
Autor responsável pela correspondência
Email: becambe@niic.nsc.ru
Rússia, pr. Akademika Lavrenteva 3, Novosibirsk, 630090
T. Pivovarova
Nikolaev Institute of Inorganic Chemistry, Siberian Branch
Email: becambe@niic.nsc.ru
Rússia, pr. Akademika Lavrenteva 3, Novosibirsk, 630090