Correlated EPR and optical study of charge trapping phenomena in tellurite glasses. The role of barium oxide

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F23%3A00576494" target="_blank" >RIV/61389005:_____/23:00576494 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/23:00367711 RIV/00216208:11320/23:10468858 RIV/60461373:22310/23:43927938
Result on the web
<a href="https://doi.org/10.1016/j.jnoncrysol.2023.122596" target="_blank" >https://doi.org/10.1016/j.jnoncrysol.2023.122596</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jnoncrysol.2023.122596" target="_blank" >10.1016/j.jnoncrysol.2023.122596</a>

Result language
angličtina
Original language name
Correlated EPR and optical study of charge trapping phenomena in tellurite glasses. The role of barium oxide
Original language description
Tellurite glasses of the compositions TeO2(60%)-ZnO(40%) and TeO2(60%)-ZnO(20%)-BaO(20%) were prepared in the bulk form with following grinding into powders. The samples were X-ray irradiated. The created charge trapping centers were studied in both types of samples using electron paramagnetic resonance (EPR) spectroscopy. The O- defect and two types of F+ centers were discovered. One of the F+ center remained unchanged whereas the other one as well as the O- defect were affected by the presence of BaO. Moreover, photo-, radioand thermoluminescence (PL, RL, TL, respectively) methods were applied as well. The discovered charge trapping centers have been proven to influence luminescence properties as well - improving them in the TeO2(60%)ZnO(40%) and vice versa degrading them in the TeO2(60%)-ZnO(20%)-BaO(20%) glasses. The effect was even stronger in the grinded samples as compared to the bulk ones. The role of the BaO has been disclosed as supporting oxygen leakage from the 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
20501 - Materials engineering

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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