Effect of Eu3+ Concentration on Luminescent Properties of Calcium Hydroxyapatite

IF 0.48 Q4 Physics and Astronomy

Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-03-18 DOI:10.1134/S106287382471047X

I. D. Sidorov, M. R. Gafurov, Yu. O. Zobkova, N. V. Petrakova, V. P. Sirotinkin, V. S. Komlev

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Abstract

Spectral and kinetic characteristics of calcium hydroxyapatite samples Ca₁₀(PO₄)₆(OH)₂ doped with Eu³⁺ ion (1, 5, and 10 mol %) were studied. The hydroxyapatite samples were presented in two forms: as-synthesized powders and heat-treated powders at 1300°C in air. Under 266 nm pulse laser excitation, they exhibited luminescence by the ⁵D₀ → ⁷F_J (J = 0, 1, 2, 3, 4) transitions in the range of 550–750 nm. A study of luminescence decays at emission wavelengths of 574 nm (⁵D₀ → ⁷F₀ transition) and 590 nm (⁵D₀ → ⁷F₁ transition) showed a complex character of luminescence decay for as-synthesized samples and predominantly monoexponential luminescence decay for heat-treated samples. With the increase of Eu³⁺ concentration, the luminescence effective decay times for these transitions decreased for as-synthesized samples, whereas the luminescence lifetimes displayed almost the same values for the heat-treated samples.

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来源期刊

Bulletin of the Russian Academy of Sciences: Physics Physics and Astronomy-Physics and Astronomy (all)

CiteScore

0.90

自引率

0.00%

发文量

251

期刊介绍： Bulletin of the Russian Academy of Sciences: Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It presents full-text articles (regular, letters to the editor, reviews) with the most recent results in miscellaneous fields of physics and astronomy: nuclear physics, cosmic rays, condensed matter physics, plasma physics, optics and photonics, nanotechnologies, solar and astrophysics, physical applications in material sciences, life sciences, etc. Bulletin of the Russian Academy of Sciences: Physics focuses on the most relevant multidisciplinary topics in natural sciences, both fundamental and applied. Manuscripts can be submitted in Russian and English languages and are subject to peer review. Accepted articles are usually combined in thematic issues on certain topics according to the journal editorial policy. Authors featured in the journal represent renowned scientific laboratories and institutes from different countries, including large international collaborations. There are globally recognized researchers among the authors: Nobel laureates and recipients of other awards, and members of national academies of sciences and international scientific societies.