Energy transfer in co-doped NaI:(Tl,Eu) crystals
The energy transfer mechanism in Eu doped and Tl, Eu co-doped NaI crystals is discussed. The self-trapped exciton emission band overlaps stronger with Eu²⁺ excitation bands rather that with Tl⁺. This suggests that transfer STE -> Activator can be more efficient in Eu²⁺ co-doped NaI:Tl crystals. T...
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Дата: | 2014 |
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Автори: | , , , |
Формат: | Стаття |
Мова: | English |
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НТК «Інститут монокристалів» НАН України
2014
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Назва видання: | Functional Materials |
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Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/120498 |
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Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
Цитувати: | Energy transfer in co-doped NaI:(Tl,Eu) crystals / S. Gridin, S. Vasyukov, N. Shiran, A. Gektin // Functional Materials. — 2014. — Т. 21, № 4. — С. 498-501. — Бібліогр.: 8 назв. — англ. |
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irk-123456789-1204982017-06-13T03:04:20Z Energy transfer in co-doped NaI:(Tl,Eu) crystals Gridin, S. Vasyukov, S. Shiran, N. Gektin, A. Technology The energy transfer mechanism in Eu doped and Tl, Eu co-doped NaI crystals is discussed. The self-trapped exciton emission band overlaps stronger with Eu²⁺ excitation bands rather that with Tl⁺. This suggests that transfer STE -> Activator can be more efficient in Eu²⁺ co-doped NaI:Tl crystals. Theoretical estimation of energy transfer efficiency was done based on the Forster model. It is shown that Europium concentration of 1 mass% or above is required for efficient dipole-dipole energy transfer. However, this concentration is not reachable in NaI:(Tl,Eu) due to the solubility limit of Eu²⁺ in NaI crystal. 2014 Article Energy transfer in co-doped NaI:(Tl,Eu) crystals / S. Gridin, S. Vasyukov, N. Shiran, A. Gektin // Functional Materials. — 2014. — Т. 21, № 4. — С. 498-501. — Бібліогр.: 8 назв. — англ. 1027-5495 DOI: dx.doi.org/10.15407/fm21.04.498 http://dspace.nbuv.gov.ua/handle/123456789/120498 en Functional Materials НТК «Інститут монокристалів» НАН України |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine |
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English |
topic |
Technology Technology |
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Technology Technology Gridin, S. Vasyukov, S. Shiran, N. Gektin, A. Energy transfer in co-doped NaI:(Tl,Eu) crystals Functional Materials |
description |
The energy transfer mechanism in Eu doped and Tl, Eu co-doped NaI crystals is discussed. The self-trapped exciton emission band overlaps stronger with Eu²⁺ excitation bands rather that with Tl⁺. This suggests that transfer STE -> Activator can be more efficient in Eu²⁺ co-doped NaI:Tl crystals. Theoretical estimation of energy transfer efficiency was done based on the Forster model. It is shown that Europium concentration of 1 mass% or above is required for efficient dipole-dipole energy transfer. However, this concentration is not reachable in NaI:(Tl,Eu) due to the solubility limit of Eu²⁺ in NaI crystal. |
format |
Article |
author |
Gridin, S. Vasyukov, S. Shiran, N. Gektin, A. |
author_facet |
Gridin, S. Vasyukov, S. Shiran, N. Gektin, A. |
author_sort |
Gridin, S. |
title |
Energy transfer in co-doped NaI:(Tl,Eu) crystals |
title_short |
Energy transfer in co-doped NaI:(Tl,Eu) crystals |
title_full |
Energy transfer in co-doped NaI:(Tl,Eu) crystals |
title_fullStr |
Energy transfer in co-doped NaI:(Tl,Eu) crystals |
title_full_unstemmed |
Energy transfer in co-doped NaI:(Tl,Eu) crystals |
title_sort |
energy transfer in co-doped nai:(tl,eu) crystals |
publisher |
НТК «Інститут монокристалів» НАН України |
publishDate |
2014 |
topic_facet |
Technology |
url |
http://dspace.nbuv.gov.ua/handle/123456789/120498 |
citation_txt |
Energy transfer in co-doped NaI:(Tl,Eu) crystals / S. Gridin, S. Vasyukov, N. Shiran, A. Gektin // Functional Materials. — 2014. — Т. 21, № 4. — С. 498-501. — Бібліогр.: 8 назв. — англ. |
series |
Functional Materials |
work_keys_str_mv |
AT gridins energytransferincodopednaitleucrystals AT vasyukovs energytransferincodopednaitleucrystals AT shirann energytransferincodopednaitleucrystals AT gektina energytransferincodopednaitleucrystals |
first_indexed |
2023-10-18T20:37:14Z |
last_indexed |
2023-10-18T20:37:14Z |
_version_ |
1796150675416023040 |