Dependence of Ce3+ - related photo- and thermally stimulated luminescence characteristics on Mgt(2+) content in single crystals and epitaxial films of Gd-3(Ga,Al)(5)O-12:Ce,Mg

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10387070" target="_blank" >RIV/00216208:11320/18:10387070 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/18:00492846

Výsledek na webu

<a href="https://doi.org/10.1016/j.optmat.2018.05.087" target="_blank" >https://doi.org/10.1016/j.optmat.2018.05.087</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.optmat.2018.05.087" target="_blank" >10.1016/j.optmat.2018.05.087</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dependence of Ce3+ - related photo- and thermally stimulated luminescence characteristics on Mgt(2+) content in single crystals and epitaxial films of Gd-3(Ga,Al)(5)O-12:Ce,Mg

Popis výsledku v původním jazyce

Photoluminescence and thermally stimulated luminescence of Gd-3(Ga,Al)(5)O-12:Ce single crystals and epitaxial films co-doped with different concentrations of Mg2+ ions are investigated in the 77-500 K temperature range under excitation in the 4f - 5d(1) and 4f - 5d(2) absorption bands of Ce3+ ions. Influence of Mg2+ ions on the photoluminescence intensity, spectrum, decay kinetics, temperature dependence of the photoluminescence intensity, and the activation energy of luminescence thermal quenching is observed. Co-doping with Mg2+ is shown to result in a drastic reduction of the afterglow and thermally stimulated luminescence and in a strong shortening of the afterglow decay kinetics. It influences also defects creation spectra and the activation energy of the photostimulated defects creation. The Mg2+ - induced changes in the characteristics of the Gd-3(Ga,Al)(5)O-12:Ce, Mg single crystals and epitaxial films are found to be strongly different, and possible reasons of these differences are discussed.

Název v anglickém jazyce

Dependence of Ce3+ - related photo- and thermally stimulated luminescence characteristics on Mgt(2+) content in single crystals and epitaxial films of Gd-3(Ga,Al)(5)O-12:Ce,Mg

Popis výsledku anglicky

Photoluminescence and thermally stimulated luminescence of Gd-3(Ga,Al)(5)O-12:Ce single crystals and epitaxial films co-doped with different concentrations of Mg2+ ions are investigated in the 77-500 K temperature range under excitation in the 4f - 5d(1) and 4f - 5d(2) absorption bands of Ce3+ ions. Influence of Mg2+ ions on the photoluminescence intensity, spectrum, decay kinetics, temperature dependence of the photoluminescence intensity, and the activation energy of luminescence thermal quenching is observed. Co-doping with Mg2+ is shown to result in a drastic reduction of the afterglow and thermally stimulated luminescence and in a strong shortening of the afterglow decay kinetics. It influences also defects creation spectra and the activation energy of the photostimulated defects creation. The Mg2+ - induced changes in the characteristics of the Gd-3(Ga,Al)(5)O-12:Ce, Mg single crystals and epitaxial films are found to be strongly different, and possible reasons of these differences are discussed.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

<a href="/cs/project/GA16-15569S" target="_blank" >GA16-15569S: Rychlé tenkovrstvé scintilátory pro 2D-zobrazování s vysokým rozlišením</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Optical Materials

ISSN

0925-3467

e-ISSN

—

Svazek periodika

83

Číslo periodika v rámci svazku

September 2018

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

290-299

Kód UT WoS článku

000440116200046

EID výsledku v databázi Scopus

2-s2.0-85048868748