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Luminescence and energy transfer processes in Ce.sup.3+./sup. activated (Gd,Tb).sub.3./sub.Al.sub.5./sub.O.sub.12./sub. single crystalline films

SYSNO ASEP	0476807
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Luminescence and energy transfer processes in Ce³⁺ activated (Gd,Tb)₃Al₅O₁₂ single crystalline films
Author(s)	Bartosiewicz, Karol (FZU-D) Babin, Vladimir (FZU-D)_{RID, ORCID} Mareš, Jiří A. (FZU-D)_{RID, ORCID} Beitlerová, Alena (FZU-D)_{RID, ORCID} Zorenko, Yu. (PL) Iskaliyeva, A. (PL) Gorbenko, V. (PL) Bryknar, Z. (CZ) Nikl, Martin (FZU-D)_{RID, ORCID, SAI}
Number of authors	9
Source Title	Journal of Luminescence. - : Elsevier - ISSN 0022-2313 Roč. 188, Aug (2017), s. 60-66
Number of pages	7 s.
Language	eng - English
Country	NL - Netherlands
Keywords	gadolinium terbium aluminum garnets ; Ce³⁺ ; energy transfer ; luminescence ; single crystalline flms
Subject RIV	BH - Optics, Masers, Lasers
OECD category	Optics (including laser optics and quantum optics)
R&D Projects	GA16-15569S GA ČR - Czech Science Foundation (CSF)
	LO1409 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Institutional support	FZU-D - RVO:68378271
UT WOS	000404308400009
EID SCOPUS	85017411764
DOI	10.1016/j.jlumin.2017.04.010
Annotation	The luminescence and scintillation properties of gadolinium terbium aluminium garnet single crystalline films, Gd3-xTbxAl5O12, doped with Ce3+ are investigated as a function of the Gd/Tb ratio with the aim of an improved understanding of the energy transfer processes between Ce3+ and Tb3+ ions in the aluminium garnet hosts. Upon replacing the Gd3+ by Tb3+, the crystal field splitting for the 5d energy level of Ce3+ does not change significantly, due to comparable sizes of the Gd3+ and Tb3+ cations. Temperature dependence of the decay time of Tb3+ and Ce3+ luminescence confirms an efficient energy transfer from the Tb3+ to Ce3+ and provides a qualitative understanding of this process. Furthermore, bidirectional energy transfer processes between the Ce3+ and Tb3+ are revealed. Scintillation decays under alpha-particles excitation show the presence of the fast and slow sub-microsecond components.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2018

Number of the records: 1