Gadolinium oxide single crystals: Optical properties and radiation resistance
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Gadolinium oxide single crystals: Optical properties and radiation resistance
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| Автор |
Pustovarov, V. A.
Nikolaev, R. E. Trifonov, V. A. Tarasenko, M. S. Dhoble, S. J. Tavrunov, D. A. Naumov, N. G. |
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| Тематика |
ENERGY TRANSFERS
GD2O3 SINGLE CRYSTAL INTRACONFIGURATIONAL F-F TRANSITIONS PHOTOLUMINESCENCE RADIATION-INDUCED DEFECTS TB3+ IONS ABSORPTION SPECTROSCOPY CRYSTAL IMPURITIES CRYSTAL STRUCTURE ELECTRON TRANSITIONS GADOLINIUM COMPOUNDS IONS OPTICAL PROPERTIES PHOTOLUMINESCENCE SINGLE CRYSTALS TERBIUM COMPOUNDS CRYSTALS STRUCTURES ENERGY-TRANSFER F-F TRANSITIONS GD2O3 SINGLE CRYSTAL INTRACONFIGURATIONAL F-F TRANSITION OPTICAL QUALITIES OPTICAL RADIATIONS RADIATION INDUCED DEFECTS RADIATION RESISTANCE TB3+ ION ENERGY TRANSFER |
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| Описание |
Large-size high optical quality Gd2O3 single crystals were grown from solution at T = 1145 °C by Czochralski method. XRD analysis showed that the crystal structure is characterized by a single cubic phase (С-phase). Absorption spectra and luminescence properties of Gd2O3 doped with impurity Tb3+ ion were studied. The absorption spectrum is determined by electronic transitions in Gd3+ ion (spectral region of 245–315 nm) and interband electron transitions below 240 nm. Intraconfigurational radiative f-f transitions from 5D4 level in Tb3+ ion are clearly manifested upon both UV- and X-ray excitation. At the same time, 6PJ → 8S7/2 radiative transitions in Gd3+ ions are completely absent. This fact indicates high efficiency of nonradiative energy transfer from Gd3+ to Tb3+ ions. Thermo-luminescent spectroscopy shows the absence of charge carrier trapping centers, which proves the perfection of its crystal structure. The crystal under study shows high radiation resistance to high-energy (E = 10 MeV, D = 105 kGy) electron beam. However, the effects of irradiation appear only in the photoluminescence excitation spectra and thermally stimulated luminescence. © 2023
Ministry of Education and Science of the Russian Federation, Minobrnauka: FEUZ-2023-0013; Russian Science Foundation, RSF: 22-43-02079; Ural Federal University, UrFU The work was supported by Russian Science Foundation (project No. 22-43-02079 ). Authors from Ural Federal University acknowledge partial support by the Ministry of Science and Higher Education of the Russian Federation (through the basic part of the government mandate, project No. FEUZ-2023-0013 and program of strategic academic leadership “Priority 2030″). |
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| Дата |
2024-04-05T16:26:15Z
2024-04-05T16:26:15Z 2023 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/ |
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| Идентификатор |
Pustovarov, VA, Nikolaev, RE, Trifonov, VA, Tarasenko, MS, Dhoble, SJ, Tavrunov, D & Naumov, NG 2023, 'Gadolinium oxide single crystals: Optical properties and radiation resistance', Optical Materials, Том. 141, 113966. https://doi.org/10.1016/j.optmat.2023.113966
Pustovarov, V. A., Nikolaev, R. E., Trifonov, V. A., Tarasenko, M. S., Dhoble, S. J., Tavrunov, D., & Naumov, N. G. (2023). Gadolinium oxide single crystals: Optical properties and radiation resistance. Optical Materials, 141, [113966]. https://doi.org/10.1016/j.optmat.2023.113966 0925-3467 Final All Open Access, Green https://www.scopus.com/inward/record.uri?eid=2-s2.0-85162768839&doi=10.1016%2fj.optmat.2023.113966&partnerID=40&md5=230113d75e0589c518eeecaaf6d31b20 http://elar.urfu.ru/handle/10995/130567 10.1016/j.optmat.2023.113966 85162768839 001012556500001 |
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| Язык |
en
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| Связанные ресурсы |
info:eu-repo/grantAgreement/RSF//22-43-02079
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| Права |
Open access (info:eu-repo/semantics/openAccess)
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| Формат |
application/pdf
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| Издатель |
Elsevier B.V.
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| Источник |
Optical Materials
Optical Materials |
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