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<p>A series of glass samples were prepared with the following composition: 45B<sub><b>2</b></sub>O<sub><b>3</b></sub> - (50-x) Bi<sub><b>2</b></sub>O<sub><b>3</b></sub> − 5MoO<sub><b>3</b></sub> - x ZnO − 0.7 Dy<sub><b>2</b></sub>O<sub><b>3</b></sub>, where x is equal to 5, 10, 15, 20 and 25%. These samples were successfully produced using the technology of melt cooling and all of them were observed to have a yellowish-brown color. X-ray diffraction analysis (XRD) confirmed the amorphous nature of the samples. Measurements of density, molar volume and optical bandgap energy were made, revealing that these properties decreased with increasing zinc oxide content. On the contrary, the oxygen intensity and filling of the tail of the strip increased with a high zinc content. Further analysis using Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) showed that the samples contained BO3, BO4, BiO3 and BiO6 groups. In addition, the ratio of bridges to non-bridge groups decreased at 25% of the zinc content. The emission spectra of the glass samples were used to compute the correlated color temperature (CCT), CIE coordinates, and intensity of yellow-to-blue emission (Y/B ratio). Furthermore, it can be claimed that ZnO-modified berate-based glass systems can reduce the Stark splitting and suitable for optoelectronics applications.</p>

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Effect of substituting Bi2O3 with ZnO in Borate glass containing dysprosium oxide on structural and optical properties

  • 期刊论文

  • 发表日期：

    2025年10月10日

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  • A. Ratep,
  • A. Metwally,
  • I. Kashif

摘要

A series of glass samples were prepared with the following composition: 45B2O3 - (50-x) Bi2O3 − 5MoO3 - x ZnO − 0.7 Dy2O3, where x is equal to 5, 10, 15, 20 and 25%. These samples were successfully produced using the technology of melt cooling and all of them were observed to have a yellowish-brown color. X-ray diffraction analysis (XRD) confirmed the amorphous nature of the samples. Measurements of density, molar volume and optical bandgap energy were made, revealing that these properties decreased with increasing zinc oxide content. On the contrary, the oxygen intensity and filling of the tail of the strip increased with a high zinc content. Further analysis using Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) showed that the samples contained BO3, BO4, BiO3 and BiO6 groups. In addition, the ratio of bridges to non-bridge groups decreased at 25% of the zinc content. The emission spectra of the glass samples were used to compute the correlated color temperature (CCT), CIE coordinates, and intensity of yellow-to-blue emission (Y/B ratio). Furthermore, it can be claimed that ZnO-modified berate-based glass systems can reduce the Stark splitting and suitable for optoelectronics applications.