Effect of Mg2+ ions co-doping on luminescence and defects formation processes in Gd3(Ga,Al)5O12:Ce single crystals

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00473811" target="_blank" >RIV/68378271:_____/17:00473811 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/17:10370336

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.optmat.2017.01.039" target="_blank" >http://dx.doi.org/10.1016/j.optmat.2017.01.039</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.optmat.2017.01.039" target="_blank" >10.1016/j.optmat.2017.01.039</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of Mg2+ ions co-doping on luminescence and defects formation processes in Gd3(Ga,Al)5O12:Ce single crystals

Popis výsledku v původním jazyce

Photo- and radioluminescence and thermally stimulated luminescence characteristics of Ce3+ doped and Ce3+, Mg2+ co-doped Gd3(Ga,Al)5O12 (GAGG) single crystals of similar composition are investigated in the 9–500 K temperature range. The Ce3+ related luminescence spectra and the photoluminescence decay kinetics in these crystals are found to be similar. Under photoexcitation in the Ce3+ and Gd3+ related absorption bands, no prominent rise of the photoluminescence intensity in time is observed neither in GAGG:Ce,Mg nor in GAGG:Ce crystals. The afterglow is strongly reduced in GAGG:Ce,Mg as compared to GAGG:Ce, and the afterglow decay kinetics is much faster. Co-doping with Mg2+ results in a drastic decrease of the thermally stimulated luminescence (TSL) intensity in the whole investigated temperature range and in the appearance of a new complex Mg2+ related TSL glow curve peak around 285 K. After irradiation in the Ce3+ related 3.6 eV absorption band, the TSL intensity in GAGG:Ce,Mg is found to be comparable with that in the GAGG:Ce epitaxial film of similar composition.

Název v anglickém jazyce

Effect of Mg2+ ions co-doping on luminescence and defects formation processes in Gd3(Ga,Al)5O12:Ce single crystals

Popis výsledku anglicky

Photo- and radioluminescence and thermally stimulated luminescence characteristics of Ce3+ doped and Ce3+, Mg2+ co-doped Gd3(Ga,Al)5O12 (GAGG) single crystals of similar composition are investigated in the 9–500 K temperature range. The Ce3+ related luminescence spectra and the photoluminescence decay kinetics in these crystals are found to be similar. Under photoexcitation in the Ce3+ and Gd3+ related absorption bands, no prominent rise of the photoluminescence intensity in time is observed neither in GAGG:Ce,Mg nor in GAGG:Ce crystals. The afterglow is strongly reduced in GAGG:Ce,Mg as compared to GAGG:Ce, and the afterglow decay kinetics is much faster. Co-doping with Mg2+ results in a drastic decrease of the thermally stimulated luminescence (TSL) intensity in the whole investigated temperature range and in the appearance of a new complex Mg2+ related TSL glow curve peak around 285 K. After irradiation in the Ce3+ related 3.6 eV absorption band, the TSL intensity in GAGG:Ce,Mg is found to be comparable with that in the GAGG:Ce epitaxial film of similar composition.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

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

2017

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

66

Číslo periodika v rámci svazku

Apr

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

48-58

Kód UT WoS článku

000400200000009

EID výsledku v databázi Scopus

2-s2.0-85010911746