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

Dysprosium (Dy3 +) doped silver Boro-phosphate glass 30 B₂O₃ + 40 P₂O₅ + 5 AgO + 10 MgO + 9 ZnO + 5 BaO + 1 Dy₂O₃ 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/mm² at 200 g, and its greatest yield strength was 134 kg/mm² at 200 g. The current components of the Dy³⁺ 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.