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<p>Dysprosium lead borate glass systems incorporating copper ions were prepared using a melt-quenching technique. The non-crystalline behavior of the glasses was confirmed by XRD analysis. The glasses’ UV–visible-NIR spectra revealed a significant absorption of Dy<sup>3+</sup> ions in the NIR region (~ 1267&#xa0;nm for samples containing 0.05 copper oxide and were copper-free). The sample free of copper (3.5&#xa0;eV) glass had the highest band gap value and the least amount of non-bridging oxygen. The obtained numerical aperture values for the glass samples can be used as the core of the optical material. The glasses’ estimated CIE coordinates, which indicate where they are in the white-light region when excited at 384&#xa0;nm, are provided. When excited at 351&#xa0;nm, the CIE coordinates deviated towards the red region at high concentrations of copper ions (≥ 0.5&#xa0;mol%). The calculated lifetimes decreased with increasing Cu ion concentration.</p>

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Influence of the different proportions of copper oxide on properties of lead borate glass containing dysprosium oxide

  • 期刊论文

  • 发表日期：

    2025年6月8日

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  • A. Ratep,
  • I. Kashif

摘要

Dysprosium lead borate glass systems incorporating copper ions were prepared using a melt-quenching technique. The non-crystalline behavior of the glasses was confirmed by XRD analysis. The glasses’ UV–visible-NIR spectra revealed a significant absorption of Dy3+ ions in the NIR region (~ 1267 nm for samples containing 0.05 copper oxide and were copper-free). The sample free of copper (3.5 eV) glass had the highest band gap value and the least amount of non-bridging oxygen. The obtained numerical aperture values for the glass samples can be used as the core of the optical material. The glasses’ estimated CIE coordinates, which indicate where they are in the white-light region when excited at 384 nm, are provided. When excited at 351 nm, the CIE coordinates deviated towards the red region at high concentrations of copper ions (≥ 0.5 mol%). The calculated lifetimes decreased with increasing Cu ion concentration.