Luminescence and scintillation characteristics of (GdxY3-x)Al2Ga3O12:Ce (x=1,2,3) single crystals

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00501246" target="_blank" >RIV/68378271:_____/18:00501246 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.optmat.2017.12.025" target="_blank" >http://dx.doi.org/10.1016/j.optmat.2017.12.025</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.optmat.2017.12.025" target="_blank" >10.1016/j.optmat.2017.12.025</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Luminescence and scintillation characteristics of (GdxY3-x)Al2Ga3O12:Ce (x=1,2,3) single crystals

Popis výsledku v původním jazyce

The luminescence and scintillation characteristics of Czochralski-grown (GdxY3-x)Al2Ga3O12:Ce (x = 1,2,3) single crystals are presented. With increasing Gd content in this garnet host, the 5d2 absorption band was blue-shifted while the 5d1 absorption and 5d1 / 4f emission bands were red-shifted due to an increase in the crystal field splitting of the 5d levels. In addition, the luminescence quenching temperature of the Ce3+ emission and activation energy for thermal quenching decreased with increasing Gd content. The Gd3+ / Ce3+ energy transfer was evidenced by photoluminescence excitation spectra of Ce3+ emission. At 662 keV g - rays, the light yield (LY) of 48,600 ph/MeV and energy resolution of 6.5% was measured for a Gd3Al2Ga3O12:Ce crystal. Scintillation decay measurements were performed using the time-correlated single photon counting technique. Superior time resolution of Gd3Al2Ga3O12:Ce is due to its high LY and fast scintillation response.n

Název v anglickém jazyce

Luminescence and scintillation characteristics of (GdxY3-x)Al2Ga3O12:Ce (x=1,2,3) single crystals

Popis výsledku anglicky

The luminescence and scintillation characteristics of Czochralski-grown (GdxY3-x)Al2Ga3O12:Ce (x = 1,2,3) single crystals are presented. With increasing Gd content in this garnet host, the 5d2 absorption band was blue-shifted while the 5d1 absorption and 5d1 / 4f emission bands were red-shifted due to an increase in the crystal field splitting of the 5d levels. In addition, the luminescence quenching temperature of the Ce3+ emission and activation energy for thermal quenching decreased with increasing Gd content. The Gd3+ / Ce3+ energy transfer was evidenced by photoluminescence excitation spectra of Ce3+ emission. At 662 keV g - rays, the light yield (LY) of 48,600 ph/MeV and energy resolution of 6.5% was measured for a Gd3Al2Ga3O12:Ce crystal. Scintillation decay measurements were performed using the time-correlated single photon counting technique. Superior time resolution of Gd3Al2Ga3O12:Ce is due to its high LY and fast scintillation response.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/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

76

Číslo periodika v rámci svazku

Feb

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

162-168

Kód UT WoS článku

000425560700023

EID výsledku v databázi Scopus

2-s2.0-85038836941