Influence of Pr3+ ions on structural, photoluminescence, dielectric, and mechanical properties of barium lithium fluoroborate glasses

• Published in: Inorganic chemistry communications Vol. 164; p. 112437
• Main Authors: El-Shamy, N.T., Mahrous, E.M., Alghamdi, S.K., Tommalieh, M.J., Rabiea, E.A., Abomostafa, H.M., Abulyazied, Dalia E., Abouhaswa, A.S.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-06-2024
• Subjects: Dielectric properties; Fluoroborate Glasses; FTIR; Mechanical properties; Photoluminescence (PL); Mechanical properties; Fluoroborate Glasses; Photoluminescence (PL); FTIR; Dielectric properties
• ISSN: 1387-7003; 1879-0259
• DOI: 10.1016/j.inoche.2024.112437

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•Borate glasses doped with Pr6O11 were prepared by melt quenching process.•FTIR spectra revealed vibrational modes of the borate glass network doped with Pr6O11.•Improvement of physical, Photoluminescence emission intensity increased with the increase of Pr6O11 content in borate glass.•The dielectric constant decreased while AC conductivity increased.•The mechanical properties improved the increase of Pr6O11 content in borate glass.
The influence of Praseodymium Oxide (Pr6O11) on the physical, optical parameters, photoluminescence, dielectric, and mechanical properties for 20BaF2 + 10Li2O+(70-x) B2O3 + xPr6O11 (where x  = 0.0, 0.5, 1.0, 1.5 and 2.0 mol %)] glasses was investigated. FTIR spectra of the borate glass network doped with Pr6O11 demonstrate the vibrational modes. The current study found that adding Pr3+ ions to the glass increased the glass density, packing density (VP), oxygen packing density (OPD), and rare earth ion concentration (N). The optical parameters include refractive index molar refraction and molar polarizability, optical transmission, and reflection loss. All the optical parameters increased except optical transmission decreased with the rising of Pr3+ ions in the glass. The photoluminescence emission intensity increased with the concentration of Pr3+ ions. The dielectric constant decreased while AC conductivity increased with the applied frequency, particularly in the high-frequency region. The elastic moduli, including longitudinal, shear, bulk, Young, and microhardness increased with increasing the content of Pr3+ ions in the glass.