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<p>The chemical composition 60B<sub>2</sub>O<sub>3</sub>–(38–x)ZnO–2Ag<sub>2</sub>O–xSm<sub>2</sub>O<sub>3</sub> (x = 0–2.5&#xa0;mol%) was used to create glasses in order to investigate how the concentration of samarium affected their structural and optical characteristics. The amorphous nature of the samples was confirmed by X-ray diffraction. FTIR spectra exhibited different state of borate structure as BO<sub>3</sub> and BO<sub>4</sub> vibrations, along with OH groups. UV–visible spectra revealed distinct absorption bands between 300 and 1100&#xa0;nm assigned to Ag<sup>2+</sup> ions and Sm<sup>3+</sup> ions transitions, while photoluminescence studies showed strong emission peaks at 490&#xa0;nm with 330&#xa0;nm excitation, whose intensity varied with Sm<sup>3+</sup> ion content. The emission analysis using CIE chromaticity coordinates demonstrated potential for light emitting diode applications. SEM analysis confirmed the uniform distribution of silver and samarium ions within the glass matrix. TEM analysis provided insights into the structural nature of the material, distinguishing between amorphous and crystalline regions, and enabled the estimation of silver nanoparticle size. Furthermore, TEM revealed that the formation of nano crystalline phases associated with the Sm<sup>3+</sup> or Ag<sup>+</sup> ions into the glass matrix.</p>

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Photonic properties of Sm3+ion doped zinc borate glasses incorporating silver nanoparticles

  • 期刊论文

  • 发表日期：

    2025年11月4日

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  • K. M. Shwetha,
  • B. Eraiah

摘要

The chemical composition 60B2O3–(38–x)ZnO–2Ag2O–xSm2O3 (x = 0–2.5 mol%) was used to create glasses in order to investigate how the concentration of samarium affected their structural and optical characteristics. The amorphous nature of the samples was confirmed by X-ray diffraction. FTIR spectra exhibited different state of borate structure as BO3 and BO4 vibrations, along with OH groups. UV–visible spectra revealed distinct absorption bands between 300 and 1100 nm assigned to Ag2+ ions and Sm3+ ions transitions, while photoluminescence studies showed strong emission peaks at 490 nm with 330 nm excitation, whose intensity varied with Sm3+ ion content. The emission analysis using CIE chromaticity coordinates demonstrated potential for light emitting diode applications. SEM analysis confirmed the uniform distribution of silver and samarium ions within the glass matrix. TEM analysis provided insights into the structural nature of the material, distinguishing between amorphous and crystalline regions, and enabled the estimation of silver nanoparticle size. Furthermore, TEM revealed that the formation of nano crystalline phases associated with the Sm3+ or Ag+ ions into the glass matrix.