Optical, luminescence and scintillation characteristics of Gd3Sc2(Al3-xGax)O12: Ce,Mg (x = 0, 1, 2) single crystalline films

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00564852" target="_blank" >RIV/68378271:_____/22:00564852 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/22:10452274

Výsledek na webu

<a href="https://doi.org/10.1016/j.optmat.2022.113240" target="_blank" >https://doi.org/10.1016/j.optmat.2022.113240</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.optmat.2022.113240" target="_blank" >10.1016/j.optmat.2022.113240</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Optical, luminescence and scintillation characteristics of Gd3Sc2(Al3-xGax)O12: Ce,Mg (x = 0, 1, 2) single crystalline films

Popis výsledku v původním jazyce

Optical, luminescence and scintillation characteristics of Ce3+ - doped Gd3Sc2(Al3-xGax)O12 (x = 0, 1, 2) single crystalline films fabricated by the liquid phase epitaxy (LPE) technique are investigated. A blue shift of the photoand radio-luminescence spectra is observed as Ga content increased due to a decrease in crystal field splitting of the Ce3+ 5d levels. Temperature-dependent characteristics of radioluminescence (RL) intensity and photoluminescence (PL) decay time are investigated. At room temperature, the decrease of PL- & RL- intensity and PL decay time with increasing Ga content can be explained by thermal ionization of the Ce3+ 5d1 excited state. Gd3Sc2Al2GaO12:Ce exhibits the highest light yield (LYα) value of 1010 ph/MeV along with fast scintillation decay time of 12 ns (27%) + 52 ns (73%) under excitation with 5.5 MeV α – particles. Shortening of scintillation decay time with a decrease of the LY value is also obtained in Mg2+-codoped samples.

Název v anglickém jazyce

Optical, luminescence and scintillation characteristics of Gd3Sc2(Al3-xGax)O12: Ce,Mg (x = 0, 1, 2) single crystalline films

Popis výsledku anglicky

Optical, luminescence and scintillation characteristics of Ce3+ - doped Gd3Sc2(Al3-xGax)O12 (x = 0, 1, 2) single crystalline films fabricated by the liquid phase epitaxy (LPE) technique are investigated. A blue shift of the photoand radio-luminescence spectra is observed as Ga content increased due to a decrease in crystal field splitting of the Ce3+ 5d levels. Temperature-dependent characteristics of radioluminescence (RL) intensity and photoluminescence (PL) decay time are investigated. At room temperature, the decrease of PL- & RL- intensity and PL decay time with increasing Ga content can be explained by thermal ionization of the Ce3+ 5d1 excited state. Gd3Sc2Al2GaO12:Ce exhibits the highest light yield (LYα) value of 1010 ph/MeV along with fast scintillation decay time of 12 ns (27%) + 52 ns (73%) under excitation with 5.5 MeV α – particles. Shortening of scintillation decay time with a decrease of the LY value is also obtained in Mg2+-codoped samples.

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

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

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

1873-1252

Svazek periodika

134

Číslo periodika v rámci svazku

Dec.

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

113240

Kód UT WoS článku

000890866300002

EID výsledku v databázi Scopus

2-s2.0-85142137559