Undoped and Eu, Na co-doped LiCaAlF6 scintillation crystals: paramagnetic centers, charge trapping and energy transfer properties

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00541716" target="_blank" >RIV/68378271:_____/21:00541716 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.jallcom.2020.158297" target="_blank" >https://doi.org/10.1016/j.jallcom.2020.158297</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jallcom.2020.158297" target="_blank" >10.1016/j.jallcom.2020.158297</a>

Result language
angličtina
Original language name
Undoped and Eu, Na co-doped LiCaAlF6 scintillation crystals: paramagnetic centers, charge trapping and energy transfer properties
Original language description
Single crystals of LiCaAlF6, undoped, Eu-doped and Na co-doped, were studied by electron paramagnetic resonance, radioluminescence and thermally stimulated luminescence techniques applied in a correlated manner. The undoped samples exposed to X-ray irradiation featured two hole-like charge trapping centers which were attributed to the perturbed F2- pseudomolecular ion and O- (as a result of the contact with air).Annealing in air caused the appearance of another defect, a new electron-like center as well. It was found that the europium dominating charge state is 2 + in the LiCaAlF6:Eu,Na samples, however, some amount of the Eu3+ is also present. The amount of the latter is easily governed by the sodium admixture while the former is insensitive to the Na co-doping. The Eu and Na co-doping affected the defects distribution and incorporation in the LiCaAlF6 host.
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
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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