Luminescence and Spectroscopic Characteristics of Zinc Barium Borotellurite Glass Doped with Tm₂O₃ for Optical Applications

Abstract

The conventional melt quenching procedures were followed to fabricate the samples of ZnO-BaO-B₂O₃-TeO₂ (ZBBoT) glass doped with various concentration of Tm₂O₃. The consequent properties which feasible depend on the dopant were examined: density, molar volume, refractive index, absorption, and photoluminescence. The Judd-Ofelt (J-O) parameters (Ω_λ, λ = 2, 4, and 6) were calculated using the absorption spectra and provided the trend of Ω₂ > Ω₆ > Ω₄. These parameters were eventually processed to investigate the properties reflecting the appropriateness of this type of glass for optical applications. The emission spectra individually provide 2 peaks at 454, and 478 nm which are used in several optical devices.

Keywords:

• Thulium oxide
• boro-tellurite glass
• luminescence
• J-O parameters
• ZBBoT

Acknowledgments

The authors would like to thank Thepsatri Rajabhat University for its warm support and Nakornpathom Rajabhat University for its fabulous facilities.