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Current issue   Ukr. J. Phys. 2015, Vol. 59, N 9, p.901-905
https://doi.org/10.15407/ujpe59.09.0901    Paper

Samoilenko S.O.1,2, Tretyak E.V.3, Kichanov S.E.2, Shevchenko G.P.3, Frolova E.V.3, Kozlenko D.P.2, Bulavin L.A.1, Malashkevich G.E.4, Savenko B.N.2

1 Taras Shevchenko National University of Kyiv
(2, Academician Glushkov Ave., Kyiv 03022, Ukraine)
2 Joint Institute for Nuclear Research
(6, Joliot-Curie Str., Dubna 141980, Russia; e-mail: samoilenko_pp@mail.ru)
3 Research Institute for Physical Chemical Problems of the Belarusian State University
(14, Leningradskaya Str., Minsk 220080, Belarus)
4 B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus
(68, Nezalezhnasti Ave., Minsk 220072, Belarus)

Neutron and Optical Researches of Multicomponent Crystalline Y3Al5O12:Ce3+/Lu2O3 and Lu3Al5O12:Ce3+/Lu2O luminophors

Section: Solid matter
Original Author's Text: Ukrainian

Abstract: Peculiarities in the crystal structure and spectral-luminescent properties of compound oxide systems Y3Al5O12:Ce3+/Lu2O3 and Lu3Al5O12:Ce3+/Lu2O3 are studied using the neutron diffraction and optical spectroscopy methods. The influence of the introduced oxide on the structural and luminescent properties of those systems is shown to have a complicated character depending not only on the formation of a stable defect garnet structure and the diffusion of Ce3+ ions from the matrix into the oxide, but also on the interaction between the oxide and the matrix, which gives rise to the formation of new phases.

Key words: neutron diffraction, luminophors, luminescence, crystalline structure, interatomic bond length.


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