Luminescence, scintillation and energy transfer in SiO2–Al2O3–B2O3–Gd2O3:Ce3+, Pr3+ glasses.

Kód výsledku v IS VaVaI

RIV/68378271:_____/17:00482775 - isvavai.cz

Výsledek na webu

http://dx.doi.org/10.1002/pssa.201700072

DOI - Digital Object Identifier

10.1002/pssa.201700072

Jazyk výsledku

angličtina

Název v původním jazyce

Luminescence, scintillation and energy transfer in SiO2–Al2O3–B2O3–Gd2O3:Ce3+, Pr3+ glasses.

Popis výsledku v původním jazyce

Ce3+,Pr3+-codoped SiO2–Al2O3–B2O3–Gd2O3 glasses (SABG: Ce,Pr) were prepared by melt quenching under a CO reducingatmosphere. Luminescence properties were investigated under UV and X-ray excitations. A dominant emission band at 430 nm belonging to the Ce3+:5d1-4f transition was observed in the photo- and radio-luminescence spectra. The energy transfer occurs fromthis Ce3+ band toward the 3PJ levels of Pr3+ with an efficiency of up to 24%, followed by the reduction of integrated luminescence intensity with an increasing Pr3+ concentration. This result is attributed to the increase in the reabsorption of Ce3+ luminescence and the non-radiative energy transfer toward then3PJ levels of Pr3+. The cross-relaxation process within the Pr3+ pairs can further diminish the total luminescence yield at high Pr3+ concentrations. The integral scintillation efficiency and light yield measurements were carried out and compared to the reference Bi4Ge3O12 (BGO) crystal.

Název v anglickém jazyce

Luminescence, scintillation and energy transfer in SiO2–Al2O3–B2O3–Gd2O3:Ce3+, Pr3+ glasses.

Popis výsledku anglicky

Ce3+,Pr3+-codoped SiO2–Al2O3–B2O3–Gd2O3 glasses (SABG: Ce,Pr) were prepared by melt quenching under a CO reducingatmosphere. Luminescence properties were investigated under UV and X-ray excitations. A dominant emission band at 430 nm belonging to the Ce3+:5d1-4f transition was observed in the photo- and radio-luminescence spectra. The energy transfer occurs fromthis Ce3+ band toward the 3PJ levels of Pr3+ with an efficiency of up to 24%, followed by the reduction of integrated luminescence intensity with an increasing Pr3+ concentration. This result is attributed to the increase in the reabsorption of Ce3+ luminescence and the non-radiative energy transfer toward then3PJ levels of Pr3+. The cross-relaxation process within the Pr3+ pairs can further diminish the total luminescence yield at high Pr3+ concentrations. The integral scintillation efficiency and light yield measurements were carried out and compared to the reference Bi4Ge3O12 (BGO) crystal.

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

2017

Kód důvěrnosti údajů

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

Název periodika

Physica Status Solidi. A

ISSN

1862-6300

e-ISSN

—

Svazek periodika

214

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

6

Strana od-do

—

Kód UT WoS článku

000409906900027

EID výsledku v databázi Scopus

2-s2.0-85019651297