Electron and hole trapping in Ce3+- and Pr3+-doped lutetium pyrosilicate scintillator crystals studied by electron paramagnetic resonance

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00532590" target="_blank" >RIV/68378271:_____/20:00532590 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevApplied.13.044060" target="_blank" >https://doi.org/10.1103/PhysRevApplied.13.044060</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevApplied.13.044060" target="_blank" >10.1103/PhysRevApplied.13.044060</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electron and hole trapping in Ce3+- and Pr3+-doped lutetium pyrosilicate scintillator crystals studied by electron paramagnetic resonance

Popis výsledku v původním jazyce

Electron and hole trapping was studied in the Ce3+ and Pr3+ doped Lu2Si2O7 scintillation single crystals (LPS:Ce and LPS:Pr) by Electron Paramagnetic Resonance (EPR). Detailed EPR measurements of the X-ray irradiated LPS crystals revealed that holes generated by irradiation are predominantly trapped at oxygen lattice ions creating O- centers. The same X-ray irradiation creates also electron type centers which were attributed to Lu2+ ions, where the trapped electron at the Lu lattice ion is stabilized by a nearby defect, such as the oxygen vacancy and Ir3+ impurity ion. An origin of charge traps in this pyrosilicate structure and their role in scintillation mechanism is compared with the results previously described in literature on orthosilicates.

Název v anglickém jazyce

Electron and hole trapping in Ce3+- and Pr3+-doped lutetium pyrosilicate scintillator crystals studied by electron paramagnetic resonance

Popis výsledku anglicky

Electron and hole trapping was studied in the Ce3+ and Pr3+ doped Lu2Si2O7 scintillation single crystals (LPS:Ce and LPS:Pr) by Electron Paramagnetic Resonance (EPR). Detailed EPR measurements of the X-ray irradiated LPS crystals revealed that holes generated by irradiation are predominantly trapped at oxygen lattice ions creating O- centers. The same X-ray irradiation creates also electron type centers which were attributed to Lu2+ ions, where the trapped electron at the Lu lattice ion is stabilized by a nearby defect, such as the oxygen vacancy and Ir3+ impurity ion. An origin of charge traps in this pyrosilicate structure and their role in scintillation mechanism is compared with the results previously described in literature on orthosilicates.

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

2020

Kód důvěrnosti údajů

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

Název periodika

Physical Review Applied

ISSN

2331-7019

e-ISSN

—

Svazek periodika

13

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

1-9

Kód UT WoS článku

000527891600003

EID výsledku v databázi Scopus

2-s2.0-85085115442