Energy migration processes in phosphate nanocrystals: size and dimensionality dependence
Peculiarities of electronic excitation energy migration in phosphate nanocrystals with three-dimensional (EuPO₄) and one-dimensional (EuP₃O₉) arrangement of regular ions under variation of concentration of both energy traps (Nd³⁺ ions) and scattering centres (La³⁺ ions) are discussed in the paper. P...
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2018
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| Zitieren: | Energy migration processes in phosphate nanocrystals: size and dimensionality dependence / N.V. Kononets, V.V. Seminko, P.O. Maksimchuk, I.I. Bespalova, V.K. Klochkov, Yu.V. Malyukin // Физика низких температур. — 2018. — Т. 44, № 5. — С. 573-579. — Бібліогр.: 33 назв. — рос. |
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Kononets, N.V. Seminko, V.V. Maksimchuk, P.O. Bespalova, I.I. Klochkov, V.K. Malyukin, Yu.V. 2021-02-03T17:54:16Z 2021-02-03T17:54:16Z 2018 Energy migration processes in phosphate nanocrystals: size and dimensionality dependence / N.V. Kononets, V.V. Seminko, P.O. Maksimchuk, I.I. Bespalova, V.K. Klochkov, Yu.V. Malyukin // Физика низких температур. — 2018. — Т. 44, № 5. — С. 573-579. — Бібліогр.: 33 назв. — рос. 0132-6414 PACS: 78.55.–m https://nasplib.isofts.kiev.ua/handle/123456789/176120 Peculiarities of electronic excitation energy migration in phosphate nanocrystals with three-dimensional (EuPO₄) and one-dimensional (EuP₃O₉) arrangement of regular ions under variation of concentration of both energy traps (Nd³⁺ ions) and scattering centres (La³⁺ ions) are discussed in the paper. Processes of energy migration in both EuPO₄ and EuP₃O₉ nanocrystals are phonon-assisted ones due to absence of resonance between energy levels of adjacent Eu³⁺ ions. The distance of energy migration for both EuPO₄ and EuP₃O₉ nanocrystalswas found to be equal to tens of nanometres, however, for EuPO₄ nanocrystals energy migration leads to stronger quenching of Eu³⁺ luminescence. For 10 nm EuPO₄ nanocrystals sufficient hampering of energy migration isobserved due to the depletion of the low-energy phonon spectrum as a result of the phonon confinement effect. ru Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Низкотемпературная оптическая спектроскопия Energy migration processes in phosphate nanocrystals: size and dimensionality dependence Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Energy migration processes in phosphate nanocrystals: size and dimensionality dependence |
| spellingShingle |
Energy migration processes in phosphate nanocrystals: size and dimensionality dependence Kononets, N.V. Seminko, V.V. Maksimchuk, P.O. Bespalova, I.I. Klochkov, V.K. Malyukin, Yu.V. Низкотемпературная оптическая спектроскопия |
| title_short |
Energy migration processes in phosphate nanocrystals: size and dimensionality dependence |
| title_full |
Energy migration processes in phosphate nanocrystals: size and dimensionality dependence |
| title_fullStr |
Energy migration processes in phosphate nanocrystals: size and dimensionality dependence |
| title_full_unstemmed |
Energy migration processes in phosphate nanocrystals: size and dimensionality dependence |
| title_sort |
energy migration processes in phosphate nanocrystals: size and dimensionality dependence |
| author |
Kononets, N.V. Seminko, V.V. Maksimchuk, P.O. Bespalova, I.I. Klochkov, V.K. Malyukin, Yu.V. |
| author_facet |
Kononets, N.V. Seminko, V.V. Maksimchuk, P.O. Bespalova, I.I. Klochkov, V.K. Malyukin, Yu.V. |
| topic |
Низкотемпературная оптическая спектроскопия |
| topic_facet |
Низкотемпературная оптическая спектроскопия |
| publishDate |
2018 |
| language |
Russian |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| description |
Peculiarities of electronic excitation energy migration in phosphate nanocrystals with three-dimensional (EuPO₄) and one-dimensional (EuP₃O₉) arrangement of regular ions under variation of concentration of both energy traps (Nd³⁺ ions) and scattering centres (La³⁺ ions) are discussed in the paper. Processes of energy migration in both EuPO₄ and EuP₃O₉ nanocrystals are phonon-assisted ones due to absence of resonance between energy levels of adjacent Eu³⁺ ions. The distance of energy migration for both EuPO₄ and EuP₃O₉ nanocrystalswas found to be equal to tens of nanometres, however, for EuPO₄ nanocrystals energy migration leads to stronger quenching of Eu³⁺ luminescence. For 10 nm EuPO₄ nanocrystals sufficient hampering of energy migration isobserved due to the depletion of the low-energy phonon spectrum as a result of the phonon confinement effect.
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| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/176120 |
| citation_txt |
Energy migration processes in phosphate nanocrystals: size and dimensionality dependence / N.V. Kononets, V.V. Seminko, P.O. Maksimchuk, I.I. Bespalova, V.K. Klochkov, Yu.V. Malyukin // Физика низких температур. — 2018. — Т. 44, № 5. — С. 573-579. — Бібліогр.: 33 назв. — рос. |
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| first_indexed |
2025-12-07T16:43:30Z |
| last_indexed |
2025-12-07T16:43:30Z |
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