Luminescent magnesium bone whitlockite nanopowders doped with europium ions

Khayrutdinova, D.R.; Goldberg, M.A.; Krokhicheva, P.A.; Deyneko, D.V.; Fomin, A.S.; Sentcova, A.M.; Antonova, O.S.; Konovalov, A.A.; Donskaya, N.O.; Lebedev, V.N.; Mikheev, I.V.; Aksenov, S.M.; Kudryavtsev, E.A.; Lobanov, M.V.; Vozisova, A.O.; Zelenikhin, P.V.; Barinov, S.M.; Komlev, V.S.

Авторы: Khayrutdinova Dinara R., Goldberg Margarita A., Krokhicheva Polina A., Deyneko Dina V., Fomin Alexander S., Sentcova Anita M., Antonova Olga S., Konovalov Anatoliy A., Donskaya Nadezhda O., Lebedev Vladimir N., Mikheev Ivan V., Aksenov Sergey M., Kudryavtsev Egor A., Lobanov Maxim V., Vozisova Anastasiya O., Zelenikhin Pavel V., Barinov Sergey M., Komlev Vladimir S.
Журнал: Optical Materials
Год издания: 2025
Издательство: Elsevier BV
Местоположение издательства: Netherlands
Первая страница: 116736
DOI: 10.1016/j.optmat.2025.116736
Аннотация: The purpose of this work was the development of bone whitlockite (WH) nanopowders doped with europium ions (Eu3+; via a precipitation route) for biomedical and phosphor-related applications. The introduction of Eu3+ ions into the WH lattice was confirmed by X-ray powder diffraction and transmission microscopy mapping, while the formation of bone WH was proven by examination of HPO42− group bands in infrared spectra. The crystals have rhombohedral morphology, and an increase of Eu3+ concentration to 0.5 at.% decreased particle size down to 30–40 nm. Photoluminescence spectra of all samples consist of a series of bands corresponding to transitions of Eu3+ from the lowest excited state 5D0 to ground state 7FJ. The emission reached maximum intensity at 0.5 at.% of Eu3+, while a further increase of the Eu3+ concentration had the concentration quenching effect. Decay times and Comission Internationale de l’Eclairage (CIE) chromaticity coordinates were determined too. CIE color coordinates (X, Y) at 0.5 at.% of Eu3+ were (0.648; 0.351), lying in a red region of color space and close to a red standard, indicating good potential for red-light–emitting phosphor applications. Thus, we obtained bone WH nanopowders with photoluminescent properties promising for optical elements, electronics, and medical applications including photoluminescent biovisualization.
Добавил в систему: Михеев Иван Владимирович

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