Effect of Ga content 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_____%2F18%3A00501249" target="_blank" >RIV/68378271:_____/18:00501249 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.optmat.2017.10.054" target="_blank" >http://dx.doi.org/10.1016/j.optmat.2017.10.054</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.optmat.2017.10.054" target="_blank" >10.1016/j.optmat.2017.10.054</a>

Result language
angličtina
Original language name
Effect of Ga content on luminescence and defects formation processes in Gd3(Ga,Al)5O12:Ce single crystals
Original language description
Luminescence characteristics of Ce3þ - doped Gd3GaxAl5-xO12 single crystals with different Ga contents(x = 1, 2, 3, 4, 5) are studied in the 9-500 K temperature range. The spectra of the afterglow, photoluminescence,radioluminescence, and thermally stimulated luminescence (TSL) of each crystal coincide. The increase of the Ga content results in the high-energy shift of the spectra while the radioluminescence intensity at 9 K remains practically constant up to x = 4. No Ce3+ emission is observed in case of x = 5. The total TSL intensity drastically increases, reaches the maximum value around x = 2-3, and then decreases due to the thermal quenching of the Ce3+ emission. The TSL glow curve maxima are gradually shifting to lower temperatures, and the dependence of the maxima positions and the corresponding trap depths on the Ga content is close to linear.
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
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

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
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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