Acceleration of emission decay in Ce-doped Gd-containing garnets by aliovalent codoping due to blocking excitation transfer via gadolinium subsystem

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10483909" target="_blank" >RIV/00216208:11320/24:10483909 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=6uPmYtTDVM" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=6uPmYtTDVM</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.radphyschem.2024.111589" target="_blank" >10.1016/j.radphyschem.2024.111589</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Acceleration of emission decay in Ce-doped Gd-containing garnets by aliovalent codoping due to blocking excitation transfer via gadolinium subsystem

Popis výsledku v původním jazyce

Substantially faster scintillators for radiation detectors are currently in demand for future high -luminosity high energy physics experiments and medical imaging devices. To meet this demand, the excitation transfer through Gd-sublattice in Ce-activated garnet -type scintillators is studied by time -resolved cathodoluminescence (CL) and photoluminescence (PL) techniques. The transfer is evidenced in the different decay rate in CL experiments and after resonant photoexcitation of Ce ions and is confirmed by the simulation of excitation transport through gadolinium subsystem and from Gd(3+) to Ce(3+) ions using the Monte Carlo technique. Energy levels of Gd(3+) involved in the transfer are identified. The comparison of the results of time -resolved PL and CL measurements and the simulations of carrier dynamics revealed that the emission decay in Ce-doped Gd-containing garnets is accelerated by aliovalent codoping due to blocking the excitation transfer via gadolinium subsystem.

Název v anglickém jazyce

Acceleration of emission decay in Ce-doped Gd-containing garnets by aliovalent codoping due to blocking excitation transfer via gadolinium subsystem

Popis výsledku anglicky

Substantially faster scintillators for radiation detectors are currently in demand for future high -luminosity high energy physics experiments and medical imaging devices. To meet this demand, the excitation transfer through Gd-sublattice in Ce-activated garnet -type scintillators is studied by time -resolved cathodoluminescence (CL) and photoluminescence (PL) techniques. The transfer is evidenced in the different decay rate in CL experiments and after resonant photoexcitation of Ce ions and is confirmed by the simulation of excitation transport through gadolinium subsystem and from Gd(3+) to Ce(3+) ions using the Monte Carlo technique. Energy levels of Gd(3+) involved in the transfer are identified. The comparison of the results of time -resolved PL and CL measurements and the simulations of carrier dynamics revealed that the emission decay in Ce-doped Gd-containing garnets is accelerated by aliovalent codoping due to blocking the excitation transfer via gadolinium subsystem.

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

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Radiation Physics and Chemistry

ISSN

0969-806X

e-ISSN

1879-0895

Svazek periodika

218

Číslo periodika v rámci svazku

May

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

5

Strana od-do

111589

Kód UT WoS článku

001180402600001

EID výsledku v databázi Scopus

2-s2.0-85184148244