The point radiation defects in Li₆YB₃O₉:Eu³⁺ single crystals
The point radiation defects in Li₆YB₃O₉:Eu³⁺ single crystals have been studied. The irradiation of Li₆YB₃O₉:Eu³⁺ single crystals with beta particles has been found to cause a valence state change (Eu³⁺ -> Eu²⁺) in some fraction of europium ions being detected by decrease of Eu³⁺ photoluminescence...
Збережено в:
| Дата: | 2008 |
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| Автор: | |
| 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/123456789/135262 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | The point radiation defects in Li₆YB₃O₉:Eu³⁺ single crystals // R.P. Yavetskiy // Functional Materials. — 2008. — Т. 15, № 3. — С. 338-342. — Бібліогр.: 31 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | The point radiation defects in Li₆YB₃O₉:Eu³⁺ single crystals have been studied. The irradiation of Li₆YB₃O₉:Eu³⁺ single crystals with beta particles has been found to cause a valence state change (Eu³⁺ -> Eu²⁺) in some fraction of europium ions being detected by decrease of Eu³⁺ photoluminescence integral intensity, as well as formation of O⁻ hole centers resulting in appearance of a radiation induced broad absorption band in the λ = 320-500 nm range. Two models of hole centers in Li₆YB₃O₉:Eu³⁺ crystals (O⁻ isolated ion or BO₃²⁻ complex ion) have been proposed. |
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