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Заглавие документа: | Luminescent properties of binary MO-2SiO2 (M = Ca2+, Sr2+, Ba2+) glasses doped with Ce3+, Tb3+ and Dy3+ |
Авторы: | Tratsiak, Y. Korjik, M. Fedorov, A. Dosovitsky, G. Akimova, O. Gordienko, E. Fasoli, M. Mechinsky, V. Vedda, A. Moretti, F. Trusova, E. |
Тема: | ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика |
Дата публикации: | 2018 |
Издатель: | Elsevier Ltd |
Библиографическое описание источника: | J Alloys Compd 2018;765:207-212. |
Аннотация: | Binary alkali-earth silicate glasses doped with Ce3+, Tb3+, and Dy3+ were obtained by melt-quenching technique and their photo- and radio-luminescence properties were investigated. The disordered structure of the glass is responsible for an inhomogeneous broadening of the electronic radiative 5d1 energy level of Ce3+ due to their localization in several positions with different surroundings, possessing a slightly different local ligand field. The influence of glass matrix composition on the Stokes shift as a function of ionic radius of the cation was shown. The radio-luminescence spectral shapes were related to the simultaneous occurrence of emissions from all Ce3+ configurations with relative weights proportional to their abundance in the glasses. The possibility of excitation of Ce3+ in different localizations was demonstrated and confirmed by the systematic shift of emission from excitation. On the contrary, no shift was observed in the Tb3+ and Dy3+ doped glasses, thanks to the lower effect of ligand field on their radiative electronic levels. |
URI документа: | https://elib.bsu.by/handle/123456789/259468 |
DOI документа: | 10.1016/j.jallcom.2018.06.210 |
Scopus идентификатор документа: | 85048934276 |
Финансовая поддержка: | Horizon 2020 Framework Programme (H2020),644260.The research was supported by the H2020 RISE Intelum Project (Grant Agreement 644260 ). The support by the grant № 14.W03.31.0004 of Ministry of Science and Education of Russian Federation is also acknowledged. |
Располагается в коллекциях: | Статьи НИУ «Институт ядерных проблем» |
Полный текст документа:
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Manuscript-Rew_31-5-18.pdf | 670,62 kB | Adobe PDF | Открыть |
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