New Light from Old Minerals: Scintillation in Engineered Willemite Compositions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F25%3A43932582" target="_blank" >RIV/60461373:22310/25:43932582 - isvavai.cz</a>

Výsledek na webu

<a href="https://iopscience.iop.org/article/10.1088/1742-6596/3157/1/012024" target="_blank" >https://iopscience.iop.org/article/10.1088/1742-6596/3157/1/012024</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1742-6596/3157/1/012024" target="_blank" >10.1088/1742-6596/3157/1/012024</a>

Jazyk výsledku

angličtina

Název v původním jazyce

New Light from Old Minerals: Scintillation in Engineered Willemite Compositions

Popis výsledku v původním jazyce

The glass samples from glass-forming area of the ZnO-Al2O3-SiO2 phasediagram were prepared by standard melt-quenching method at 1400–1600 °Ctemperature range for 10–12 h. The subsequent annealing with a heating ramp of5 °C/min to 850 °C yielded glass-ceramics nature of samples. X-ray diffractionmeasurements identified the presence of amorphous phase for as-preparedsamples and two crystalline phases, including monoclinic Zn2SiO4, andrhombohedral Zn2SiO4 (willemite), after annealing. The scintillation andluminescence properties of prepared glass and annealed glass-ceramics wereinvestigated by using the time-resolved luminescence spectroscopy. Therestoration of the intense UV emission peaking at around 360 nm under the X-rayexcitation (40 kV), overcoming the standard Bi4Ge3O12 scintillator intensity bymore than 160%, was discovered after annealing while as-prepared glass samplesexhibited negligible luminescence response to the X-ray exposure. Thecorresponding scintillation decay with leading component in sub-nanosecondscale was detected for annealed samples. The bandgap of willemite was estimatedfrom the photoluminescence excitation spectra to be at 5.85 eV,photoluminescence emission shows the band in UV region with correspondingphotoluminescence decay times spanning from units to tens of nanosecond. Theimpact of annealing conditions on the material´s structural and optical propertiesis discussed in detail.

Název v anglickém jazyce

New Light from Old Minerals: Scintillation in Engineered Willemite Compositions

Popis výsledku anglicky

The glass samples from glass-forming area of the ZnO-Al2O3-SiO2 phasediagram were prepared by standard melt-quenching method at 1400–1600 °Ctemperature range for 10–12 h. The subsequent annealing with a heating ramp of5 °C/min to 850 °C yielded glass-ceramics nature of samples. X-ray diffractionmeasurements identified the presence of amorphous phase for as-preparedsamples and two crystalline phases, including monoclinic Zn2SiO4, andrhombohedral Zn2SiO4 (willemite), after annealing. The scintillation andluminescence properties of prepared glass and annealed glass-ceramics wereinvestigated by using the time-resolved luminescence spectroscopy. Therestoration of the intense UV emission peaking at around 360 nm under the X-rayexcitation (40 kV), overcoming the standard Bi4Ge3O12 scintillator intensity bymore than 160%, was discovered after annealing while as-prepared glass samplesexhibited negligible luminescence response to the X-ray exposure. Thecorresponding scintillation decay with leading component in sub-nanosecondscale was detected for annealed samples. The bandgap of willemite was estimatedfrom the photoluminescence excitation spectra to be at 5.85 eV,photoluminescence emission shows the band in UV region with correspondingphotoluminescence decay times spanning from units to tens of nanosecond. Theimpact of annealing conditions on the material´s structural and optical propertiesis discussed in detail.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20504 - Ceramics

Projekt

<a href="/cs/project/GA23-05507S" target="_blank" >GA23-05507S: Pokročilé anorganické nanokompozity pro distribuované senzory škodlivého záření</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Journal of Physics: Conference Series

ISSN

1742-6588

e-ISSN

1742-6596

Svazek periodika

3157

Číslo periodika v rámci svazku

2025

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

012024

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-105027279641