Evaluation of structural, optical, and scintillation characteristics of Ag activated ZnS nanoparticles

Abdalla, Ayman M.; Khan, Arshad; Almalki, Shaimaa; Kawaguchi, Noriaki; Yanagida, Takayuki; Alsareii, Saeed A.; Algethami, Jari S.

doi:10.1016/j.radphyschem.2023.110999

Cited by 5 publications

(1 citation statement)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Upon doping the powders with 25 mg/g Cl and sintering them at 600 °C for 1 h, the larger-sized spheres were de- In Figure 5a, the field emission scanning electron microscopy (FE-SEM) patterns of powders synthesized through hydrothermal means are displayed. Using ImageJ (1.54h), an open-source software for image analysis [40] the particle sizes of the captured particles were calculated and averaged. These particles had spherical shapes with an average size of approximately 2.8 µm and a standard deviation of 1.5 µm.…”

Section: Edx and Fe-sem Analysismentioning

confidence: 99%

Effect of Sintering Time and Cl Doping Concentrations on Structural, Optical, and Luminescence Properties of ZnO Nanoparticles

Khan,

Mohamed,

Al-Naggar

et al. 2024

Inorganics

Self Cite

View full text Add to dashboard Cite

Zinc oxide (ZnO) nanoparticles were synthesized hydrothermally using zinc acetate dihydrate and sodium thiosulfate pentahydrate precursors. The synthesized powders were sintered in air at 600 °C for different durations with a Cl-doping concentration of 25 mg/g. The optimal sintering time was found to be 5 h, resulting in the successful formation of the ZnO phase with small particle sizes of around 90 nm, nominal atomic fractions of Zn and O (~50%, ~50%), and increased luminescence intensity. The ideal concentration of Cl was discovered to be 25 mg/g of ZnO, which resulted in the highest luminescence intensity. The ZnO luminescence characteristics were observed in emission bands peaking at approximately 503 nm attributed to the transition from oxygen vacancies. A considerable improvement in the emission intensity was observed with increased Cl doping concentration, up to eight orders of magnitude, compared to pristine ZnO nanoparticles. However, the luminescence intensity decreased in samples with higher concentrations of Cl doping due to concentration quenching. These preliminary outcomes suggest that Cl-doped ZnO nanoparticles could be used for radiation detector development for radon monitoring and other related applications.

show abstract

Section: Edx and Fe-sem Analysismentioning

confidence: 99%