Distribution and luminescence characteristics of Ce³⁺ ions in calcium hydroxyapatite
The luminescence characteristics of Ce³⁺ ions in calcium hydroxyapatite Ca₁₀(PO₄)₆(OH)₂ have been studied under excitation within the 3.5-15 eV region. It has been found that in Ca₁₀(PO₄)₆(OH)₂ prepared in a reducing atmosphere, Ce³⁺ ions tend to occupy preferably high symmetry Ca(I) sites. The ener...
Збережено в:
Видавець: | НТК «Інститут монокристалів» НАН України |
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Дата: | 2008 |
Автори: | , , , , , |
Формат: | Стаття |
Мова: | English |
Опубліковано: |
НТК «Інститут монокристалів» НАН України
2008
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Назва видання: | Functional Materials |
Теми: | |
Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/134327 |
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Цитувати: | Distribution and luminescence characteristics of Ce³⁺ ions in calcium hydroxyapatite / I.V. Berezovskaya, N.P. Efryushina, G.B. Stryganyuk, A.S. Voloshinovskii, E.V. Zubar, V.P. Dotsenko // Functional Materials. — 2008. — Т. 15, № 2. — С. 164-168. — Бібліогр.: 16 назв. — англ. |
Репозиторії
Digital Library of Periodicals of National Academy of Sciences of UkraineРезюме: | The luminescence characteristics of Ce³⁺ ions in calcium hydroxyapatite Ca₁₀(PO₄)₆(OH)₂ have been studied under excitation within the 3.5-15 eV region. It has been found that in Ca₁₀(PO₄)₆(OH)₂ prepared in a reducing atmosphere, Ce³⁺ ions tend to occupy preferably high symmetry Ca(I) sites. The energies of all 5d crystal field levels of Ce³⁺ ions in Ca(I) sites have been determined. In addition to the 4f->5d excitation bands, the excitation spectrum of the Ce³⁺ emission shows a band with a maximum at 7.7 eV which is attributed to the host lattice absorption. The influence of the structural features of Ca₁₀(PO₄)₆(OH)₂ on the luminescent behavior of Ce³⁺ is discussed. |
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