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Luminescence and energy transfer processes in (Lu,Tb).sub.3./sub.Al.sub.5./sub.O.sub.12./sub. single crystalline films doped with Ce.sup.3+./sup.
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SYSNO ASEP 0469999 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Luminescence and energy transfer processes in (Lu,Tb)3Al5O12 single crystalline films doped with Ce3+ Author(s) Bartosiewicz, Karol (FZU-D)
Babin, Vladimir (FZU-D) RID, ORCID
Nikl, Martin (FZU-D) RID, ORCID, SAI
Mareš, Jiří A. (FZU-D) RID, ORCID
Zorenko, Yu. (PL)
Gorbenko, V. (PL)Source Title Journal of Luminescence. - : Elsevier - ISSN 0022-2313
Roč. 173, May (2016), s. 141-148Number of pages 8 s. Language eng - English Country NL - Netherlands Keywords lutetium terbium aluminum garnets ; Ce3+ ; energy transfer ; luminescence ; single crystalline films Subject RIV BH - Optics, Masers, Lasers R&D Projects GA16-15569S GA ČR - Czech Science Foundation (CSF) GAP204/12/0805 GA ČR - Czech Science Foundation (CSF) Institutional support FZU-D - RVO:68378271 UT WOS 000371799200024 EID SCOPUS 84955438680 DOI 10.1016/j.jlumin.2016.01.022 Annotation The luminescence properties of terbium lutetium aluminium garnet single crystalline films, Lu3−xTbxAl5O12, doped with Ce3+ are investigated as a function of the Tb/Lu ratio with aim of an improved understanding of the energy transfer processes between Ce3+ and Tb3+ ions in the aluminium garnet hosts. Due to replacing the smaller Lu3+ ion with the larger Tb3+ ion, the crystal field splitting for the 5d energy levels of Ce3+ ions increases, causing the shift of the lowest 5d state of Ce3+ below the 5D4 energy level of Tb3+. This allows for the efficient energy transfer from Tb3+ to Ce3+ even at the low temperatures. The measurements of temperature dependence of the decay time of Tb3+ and Ce3+ luminescence confirm an efficient energy transfer from Tb3+ to Ce3+ and provide a qualitative understanding of this process. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2017
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