Tuning the physical, structural, optical, and photoluminescence properties of the zinc–aluminum phosphate network utilizing barium and lead ions

• Published in: Journal of materials science. Materials in electronics 2024-05, Vol.35 (14), p.974, Article 974
• Main Authors: Banoqitah, Essam, Djouider, Fathi, Alnowaimi, Majdi Rashed, Alhawsawi, Abdulsalam M., Moustafa, Essam B., Hammad, Ahmed H.
• Format: Article
• Language: English
• Subjects: Aluminum phosphate; Barium; Barium oxides; Characterization and Evaluation of Materials; Chemistry and Materials Science; Glass; Lead oxides; Materials Science; Optical and Electronic Materials; Optical properties; Photoluminescence; Refractivity; Zinc phosphate
• ISSN: 0957-4522; 1573-482X
• DOI: 10.1007/s10854-024-12730-1

Zinc phosphate glasses with varying concentrations of barium and lead oxides were developed. The P–O bonds exhibited Q 3 and Q 2 mode vibrations. The glass density ( D exp ) increased as the PbO content increased from 2.422 to 3.646 g/cm 3 from 0 to 15% mol%. The absorption edge of the studied glasses shifted towards higher wavelengths, indicating structural changes due to the presence of both barium and lead ions. When lead was added to the host network with a ratio of 5% PbO (PbO5), the optical transmittance went up from 0.37 to 0.43 in the visible range. With the increase in PbO content (PbO = 15%; or free BaO), the optical transmittance decreased to 0.18. The optical band gap for free PbO glass decreased from 3.985 to 3.118 eV for free BaO glass, indicating the creation of non-bridging oxygens. The refractive index at 589 nm of the free PbO sample was 2.6, which decreased to 1.96 for the free BaO sample. The photoluminescence of the current glasses depends on the ratio of PbO content, and their intensity increases with increasing PbO content. All luminescence spectra lie in the cyan-blue region.