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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/68407700:21340/23:00367711 RIV/00216208:11320/23:10468858 RIV/60461373:22310/23:43927938

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Journal of Non-Crystalline Solids

ISSN

0022-3093

e-ISSN

1873-4812

Svazek periodika

620

Číslo periodika v rámci svazku

NOV

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

122596

Kód UT WoS článku

001072019900001

EID výsledku v databázi Scopus

2-s2.0-85169797288