SYNTHESIS AND THE OPTICAL BEHAVIOUR OF ERBIUM-DOPED BORO-TELLURITE ZINC NIOBIUM BARIUM GLASS
DOI:
https://doi.org/10.55766/sujst5266Keywords:
Erbium, Fourier Transform Infrared, Luminescence, X-Ray DiffractionAbstract
This study investigates the physical, structural, optical, and luminescence properties of erbium-doped boro-tellurite zinc niobium barium (ErBT) glass. The glass was characterized by exploring the impact of erbium doping on its physical, structural, optical, and luminescence behavior. The density, molar volume, and refractive index describe the physical properties, ranging from 3.73 to 4.11 g/cm³, 33.82 to 36.47 cm³/mol, and 1.72 to 1.79, respectively. Structural analysis, utilizing techniques such as X-ray diffraction (XRD) and Fourier Transform Infrared (FTIR), reveals that the glass network is amorphous, and the vibrations of the molecules determine the internal structure of the glass. Optical properties were examined through absorption spectroscopy, providing insights into the energy levels of 4f from the ⁴I₁₅/₂ ground state to various excited states, such as ⁴F₅/₂, ⁴F₇/₂, ²H₁₁/₂, ⁴S₃/₂, ⁴F₉/₂, ⁴I₉/₂, ⁴I₁₁/₂ and ⁴I₁₃/₂. These transitions are positioned at wavelengths of 450, 487, 532, 541, 651, 655, 799, 980, and 1535 nm, respectively. Moreover, NIR luminescence measurements were performed to evaluate the luminescence behavior of the erbium-doped glass, which shows state-level energy can be assigned to the ⁴I₁₃/₂ → ⁴I₁₅/₂ transition at 1535 nm, emission properties, and potential applications. The results demonstrated the modification of the ErBT glass's optical behavior and the enhancement of its luminescence characteristics through the doping of erbium. These results contribute to the fundamental understanding of erbium-doped glasses and provide guidelines for applications in optoelectronics, lasers, and optical amplifiers. Further exploration in this field has the potential to novel applications and optimize the performance of erbium-doped ErBT glass in various photonic devices.
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