Investigation on single rare earth Dy3+ doped silver boro-phosphate glass for radiation shielding and led application

• Published in: Applied physics. A, Materials science & processing Materials science & processing, 2024-05, Vol.130 (5), Article 346
• Main Authors: Kalpana, S., Vinothkumar, P., Senthil, T. S.
• Format: Article
• Language: English
• Subjects: Amorphous materials; Atomic properties; Attenuation coefficients; Barium oxides; Boron oxides; Characterization and Evaluation of Materials; Chromaticity; Condensed Matter Physics; Crystallization; Diamond pyramid hardness; Dysprosium; Elastic properties; Emission; Energy gap; Fourier transforms; Gamma rays; Lasers; Machines; Manufacturing; Mechanical properties; Nanotechnology; Optical and Electronic Materials; Optical properties; Phosphate glass; Phosphorus pentoxide; Photoluminescence; Physics; Physics and Astronomy; Processes; Radiation; Radiation shielding; Raman spectra; Raman spectroscopy; Refractivity; Spectrum analysis; Surfaces and Interfaces; Thin Films; X ray powder diffraction; Zinc oxide
• ISSN: 0947-8396; 1432-0630
• DOI: 10.1007/s00339-024-07480-0

Dysprosium (Dy3 +) doped silver Boro-phosphate glass 30 B 2 O 3  + 40 P 2 O 5  + 5 AgO + 10 MgO + 9 ZnO + 5 BaO + 1 Dy 2 O 3 was created via melt quenching, and Powder X-ray diffraction was utilized to describe the material, and the absence of crystallization peaks in the spectra confirmed that the material is amorphous and glassy. Optical characteristics were carried out using the Uv–Vis analysis. The refractive index was discovered to be 1.9 at 400 nm, and the optical band gap energy was determined to be 3.6 eV. The functional regions of the produced glass were identified using Fourier Transform InfraRed and Fourier Transform -Raman spectroscopy investigations. The FT-RAMAN spectra confirmed the stretching vibrations of the borate units, while the FTIR spectrum shows the existence of phosphate and borate groups. Various prominent emission peaks were seen in the glass. The photoluminescence findings of the Dysprosium-doped silver Boro-phosphate glass showed that the excitation wavelength was 386 nm, and the emission peak was observed at 482 nm (blue) and 574 nm (yellow). CIE chromaticity coordinates of the prepared sample were determined to be x  = 0.373 and y  = 0.454. For usage in visible lasers and LEDs, the predicted CCT of 4494 K for the Dysprosium-doped silver Boro-phosphate glass is suitable. Vickers microhardness tester was used to evaluate the mechanical behavior of the produced glass. The glass's maximum elastic stiffness constant was 700 kg/mm 2 at 200 g, and its greatest yield strength was 134 kg/mm 2 at 200 g. The current components of the Dy 3+ doped silver Boro-phosphate glass elemental traces were identified using the EDAX spectrum and SEM images manifested their phase formation. The Phy-X program was used to look at gamma-ray properties such as the mass attenuation coefficient, mean free path (MFP), effective atomic number ( Z eff ), and half-value layer. The suggested glass composition's spectroscopic characteristics indicate that it is suitable for visible lasers and LEDs and radiation shielding applications.