Electron and hole trapping in Li2MoO4 cryogenic scintillator

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00550033" target="_blank" >RIV/68378271:_____/21:00550033 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.optmat.2021.110971" target="_blank" >https://doi.org/10.1016/j.optmat.2021.110971</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.optmat.2021.110971" target="_blank" >10.1016/j.optmat.2021.110971</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electron and hole trapping in Li2MoO4 cryogenic scintillator

Popis výsledku v původním jazyce

The origin and thermal stability of charge trapping centers were studied in Li2MoO4 cryogenic scintillators by correlated electron paramagnetic resonance (EPR) and thermally stimulated luminescence (TSL) measurements. Up to five electron and three hole trapping centers were detected in the crystals X-ray irradiated at 77 K. The electron traps were ascribed to MoO43− molecular complexes, unperturbed and perturbed by neighboring defects, while the hole traps – to O− lattice ions perturbed by lithium and molybdenum vacancies. The thermal stability of the trapping centers was studied and the depths of electron and hole traps were determined. The TSL peaks observed in the 77–300 K temperature range were related to the depletion of the detected paramagnetic centers. Influence of the revealed centers on the scintillation light yield is discussed.

Název v anglickém jazyce

Electron and hole trapping in Li2MoO4 cryogenic scintillator

Popis výsledku anglicky

The origin and thermal stability of charge trapping centers were studied in Li2MoO4 cryogenic scintillators by correlated electron paramagnetic resonance (EPR) and thermally stimulated luminescence (TSL) measurements. Up to five electron and three hole trapping centers were detected in the crystals X-ray irradiated at 77 K. The electron traps were ascribed to MoO43− molecular complexes, unperturbed and perturbed by neighboring defects, while the hole traps – to O− lattice ions perturbed by lithium and molybdenum vacancies. The thermal stability of the trapping centers was studied and the depths of electron and hole traps were determined. The TSL peaks observed in the 77–300 K temperature range were related to the depletion of the detected paramagnetic centers. Influence of the revealed centers on the scintillation light yield is discussed.

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/GA20-12885S" target="_blank" >GA20-12885S: Kodopování jako nástroj k potlačení příměsových a intrinsických center záchytu náboje v scintilátorech na bázi oxidů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

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

114

Číslo periodika v rámci svazku

Apr.

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

110971

Kód UT WoS článku

000651208100007

EID výsledku v databázi Scopus

2-s2.0-85101982110