Scintillation properties and energy transfer in (GdY)AlO3:Ce3+ perovskites with high Gd content

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00532944" target="_blank" >RIV/68378271:_____/20:00532944 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/20:10417435

Výsledek na webu

<a href="https://doi.org/10.1109/TNS.2020.2976741" target="_blank" >https://doi.org/10.1109/TNS.2020.2976741</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TNS.2020.2976741" target="_blank" >10.1109/TNS.2020.2976741</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Scintillation properties and energy transfer in (GdY)AlO3:Ce3+ perovskites with high Gd content

Popis výsledku v původním jazyce

The scintillation, optical, and photoluminescence properties of yttrium gadolinium aluminum perovskites activated by Ce3+ ions, (Y1−xGdx )AlO3:Ce3+, were studied. A set of single-crystalline films with Gd content from x = 0 to 1 was grown by the liquid phase epitaxy. At higher Gd content, the bidirectional nonradiative energy transfer (ET) between Ce3+ and Gd3+ ions was observed, and an adequate model that took into consideration the energy migration over the Gd subsystem was suggested. The results decidedly showed that in samples with low Gd content, x < 0.2, the ET from Gd3+ to Ce3+ ions prevailed, which increased the light output. However, slow components appeared simultaneously in the scintillation decays. At high Gd concentrations, the nonradiative back ET from Ce3+ to Gd3+ predominated, which resulted in a considerable acceleration of scintillation decays from 28 ns in YAlO3:Ce to less than 2 ns in GdAlO3:Ce, but simultaneously the Ce3+ emission was significantly reduced.n

Název v anglickém jazyce

Scintillation properties and energy transfer in (GdY)AlO3:Ce3+ perovskites with high Gd content

Popis výsledku anglicky

The scintillation, optical, and photoluminescence properties of yttrium gadolinium aluminum perovskites activated by Ce3+ ions, (Y1−xGdx )AlO3:Ce3+, were studied. A set of single-crystalline films with Gd content from x = 0 to 1 was grown by the liquid phase epitaxy. At higher Gd content, the bidirectional nonradiative energy transfer (ET) between Ce3+ and Gd3+ ions was observed, and an adequate model that took into consideration the energy migration over the Gd subsystem was suggested. The results decidedly showed that in samples with low Gd content, x < 0.2, the ET from Gd3+ to Ce3+ ions prevailed, which increased the light output. However, slow components appeared simultaneously in the scintillation decays. At high Gd concentrations, the nonradiative back ET from Ce3+ to Gd3+ predominated, which resulted in a considerable acceleration of scintillation decays from 28 ns in YAlO3:Ce to less than 2 ns in GdAlO3:Ce, but simultaneously the Ce3+ emission was significantly reduced.n

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/GA18-14789S" target="_blank" >GA18-14789S: Vývoj a charakterizace vysoce účinných multikomponentních scintilátorů na bázi perovskitů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

IEEE Transactions on Nuclear Science

ISSN

0018-9499

e-ISSN

—

Svazek periodika

67

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

1049-1054

Kód UT WoS článku

000545005000034

EID výsledku v databázi Scopus

2-s2.0-85086990104