Effect of Mg2+ ions co-doping on luminescence and defects formation processes in Gd3(Ga,Al)5O12:Ce single crystals

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00473811" target="_blank" >RIV/68378271:_____/17:00473811 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/17:10370336
Result on the web
<a href="http://dx.doi.org/10.1016/j.optmat.2017.01.039" target="_blank" >http://dx.doi.org/10.1016/j.optmat.2017.01.039</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.optmat.2017.01.039" target="_blank" >10.1016/j.optmat.2017.01.039</a>

Result language
angličtina
Original language name
Effect of Mg2+ ions co-doping on luminescence and defects formation processes in Gd3(Ga,Al)5O12:Ce single crystals
Original language description
Photo- and radioluminescence and thermally stimulated luminescence characteristics of Ce3+ doped and Ce3+, Mg2+ co-doped Gd3(Ga,Al)5O12 (GAGG) single crystals of similar composition are investigated in the 9–500 K temperature range. The Ce3+ related luminescence spectra and the photoluminescence decay kinetics in these crystals are found to be similar. Under photoexcitation in the Ce3+ and Gd3+ related absorption bands, no prominent rise of the photoluminescence intensity in time is observed neither in GAGG:Ce,Mg nor in GAGG:Ce crystals. The afterglow is strongly reduced in GAGG:Ce,Mg as compared to GAGG:Ce, and the afterglow decay kinetics is much faster. Co-doping with Mg2+ results in a drastic decrease of the thermally stimulated luminescence (TSL) intensity in the whole investigated temperature range and in the appearance of a new complex Mg2+ related TSL glow curve peak around 285 K. After irradiation in the Ce3+ related 3.6 eV absorption band, the TSL intensity in GAGG:Ce,Mg is found to be comparable with that in the GAGG:Ce epitaxial film of similar composition.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)

Project
<a href="/en/project/GA16-15569S" target="_blank" >GA16-15569S: Fast thin film scintillators for high resolution 2D-imaging</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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