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The role of Er.sup.3+./sup. content in the luminescence properties of Y.sub.3./sub.Al.sub.5./sub.O.sub.12./sub. single crystals: incorporation into the lattice and defect state creation
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SYSNO ASEP 0572143 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title The role of Er3+ content in the luminescence properties of Y3Al5O12 single crystals: incorporation into the lattice and defect state creation Author(s) Buryi, Maksym (FZU-D) RID, ORCID
Gaston-Bellegarde, Amayes Medhi (FZU-D)
Pejchal, Jan (FZU-D) RID, ORCID
Levchenko, Fedor (FZU-D) ORCID
Remeš, Zdeněk (FZU-D) RID, ORCID
Ridzoňová, Katarína (FZU-D) ORCID
Babin, Vladimir (FZU-D) RID, ORCID
Chertopalov, Sergii (FZU-D) ORCIDNumber of authors 8 Article number 562 Source Title Crystals. - : MDPI - ISSN 2073-4352
Roč. 13, č. 4 (2023)Number of pages 14 s. Language eng - English Country CH - Switzerland Keywords yttrium aluminum garnet ; erbium doping ; epr ; luminescence ; kinetics Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 000977767100001 EID SCOPUS 85156265247 DOI 10.3390/cryst13040562 Annotation Erbium-doped Y3Al5O12 (YAG) single crystals grown using the micro-pulling-down technique were investigated. Three Er concentrations were chosen: 0.1, 0.3 and 1 at%. Er3+ electron paramagnetic resonance (EPR) spectra were measured in the ground and first excited states. The corresponding g tensors and 167Er hyperfine interaction were changing upon Er content indicating moderation of the Er-O bond length and/or Er local surrounding. Photoluminescence (PL) and radioluminescence (RL) spectra were complex, consisting of strongly overlapped typical Er3+ transitions. In addition, there were other broad PL band (3.1 eV) and RL band (3.95 eV) attributed to the F+ center and yttrium substituting for aluminum (YAl), respectively. The X-ray excited decay kinetics exhibited a decrease of the decay time of the YAl from hundreds of nanoseconds to nanoseconds upon Er doping level. This is discussed and explained considering EPR data. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2024 Electronic address https://hdl.handle.net/11104/0346906
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