NIR luminescence properties of Nd3+ ion doped glasses medium based on Huta Ginjang quartz sand

Neodymium ions (Nd³⁺) doped into quartz sand and silicate oxide-based glass mediums have been synthesized using the melt-quenching method. The resulting glass samples adhere to the chemical compositions of 5 quartz sand (QS) + 50 B₂O₃ + 10 BaO + 30 Na₂O + 0.5Nd₂O₃ and 5SiO₂ + 50B₂O₃ + 10BaO + 30Na₂O + 0.5Nd₂O₃. These glasses were characterized by density, refractive index, X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and absorption spectrum. The quartz sand samples exhibited higher refractive index and molar volume compared to the silica borate samples. XRD spectra revealed the structural properties of the glass samples, while FTIR spectra were recorded across wavelengths from 650 to 4000 cm⁻¹. The absorption spectra were observed in the UV–Vis–NIR range from 350 to 1000 nm, revealing 11 transition peaks. Additionally, three emission peaks were identified within the wavelength range of 800–1500 nm, along with the decay time of the glass samples.