Scintillation properties of zinc-silicate glass-ceramics based on Zn2SiO4 willemite phase

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F25%3A00619457" target="_blank" >RIV/67985882:_____/25:00619457 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/25:00619457 RIV/00216208:11320/25:10508642 RIV/60461373:22310/25:43931570

Výsledek na webu

<a href="https://doi.org/10.1016/j.optmat.2025.116961" target="_blank" >https://doi.org/10.1016/j.optmat.2025.116961</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.optmat.2025.116961" target="_blank" >10.1016/j.optmat.2025.116961</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Scintillation properties of zinc-silicate glass-ceramics based on Zn2SiO4 willemite phase

Popis výsledku v původním jazyce

The glass-ceramics samples were prepared via controlled heat treatment of precursor glass synthesized using the standard melt-quenching method. The glass composition (in mol.%) was 14.3Na2O–35.7ZnO–49.4SiO2–0.6 Al2O3 and the annealing temperatures were varied at 750, 800, 850 and 900 ◦C. X-ray diffraction measurements identified the presence of several crystalline phases, including Na2ZnSiO4, triclinic Zn2SiO4, and rhombohedral Zn2SiO4 (willemite), with their formation dependent on the annealing temperature. Transmission electron microscopy confirmed the presence of crystalline phase nanoparticles with a size of 10–30 nm, where increased annealing temperatures resulted in a higher number of nanoparticles and reduced particle sizes. The optical, scintillation and luminescence properties of prepared glass and glass-ceramics were investigated by spectroscopic ellipsometry and using the time-resolved luminescence spectroscopy, revealing a decrease in refractive index and chromatic dispersion with higher annealing temperatures. The intense UV emission peaking at around 350 nm, overcoming the standard Bi4Ge3O12 scintillator intensity by more than 500 %, for all the samples was discovered under the X-ray excitation (40 kV). The bandgap of willemite nanoparticles was measured at approximately 205–220 nm and the corresponding scintillation decay with leading component in sub-nanosecond scale was detected. These findings highlight the potential of Zn2SiO4-based glass-ceramics, particularly those containing willemite nanoparticles, as promising materials for advanced distributed radioluminescent sensors and fast scintillation applications. The impact of annealing conditions on the material’s structural and optical properties is discussed in detail.

Název v anglickém jazyce

Scintillation properties of zinc-silicate glass-ceramics based on Zn2SiO4 willemite phase

Popis výsledku anglicky

The glass-ceramics samples were prepared via controlled heat treatment of precursor glass synthesized using the standard melt-quenching method. The glass composition (in mol.%) was 14.3Na2O–35.7ZnO–49.4SiO2–0.6 Al2O3 and the annealing temperatures were varied at 750, 800, 850 and 900 ◦C. X-ray diffraction measurements identified the presence of several crystalline phases, including Na2ZnSiO4, triclinic Zn2SiO4, and rhombohedral Zn2SiO4 (willemite), with their formation dependent on the annealing temperature. Transmission electron microscopy confirmed the presence of crystalline phase nanoparticles with a size of 10–30 nm, where increased annealing temperatures resulted in a higher number of nanoparticles and reduced particle sizes. The optical, scintillation and luminescence properties of prepared glass and glass-ceramics were investigated by spectroscopic ellipsometry and using the time-resolved luminescence spectroscopy, revealing a decrease in refractive index and chromatic dispersion with higher annealing temperatures. The intense UV emission peaking at around 350 nm, overcoming the standard Bi4Ge3O12 scintillator intensity by more than 500 %, for all the samples was discovered under the X-ray excitation (40 kV). The bandgap of willemite nanoparticles was measured at approximately 205–220 nm and the corresponding scintillation decay with leading component in sub-nanosecond scale was detected. These findings highlight the potential of Zn2SiO4-based glass-ceramics, particularly those containing willemite nanoparticles, as promising materials for advanced distributed radioluminescent sensors and fast scintillation applications. The impact of annealing conditions on the material’s structural and optical properties is discussed in detail.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

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

162

Číslo periodika v rámci svazku

May

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

116961

Kód UT WoS článku

001455747300001

EID výsledku v databázi Scopus

2-s2.0-105000601544