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Abstract <p>In this paper, we studied the Na<sub>2</sub>O–CaO–B<sub>2</sub>O<sub>3</sub>–TeO<sub>2</sub>–Sm<sub>2</sub>O<sub>3</sub> (labeled as NCBT-Sm) for the physical, optical, and luminescence properties of the NCBT-Sm glasses. The XRD study confirmed the amorphous nature of the glass. The density and molar volume increase with increasing concentration of TeO<sub>2</sub>. We found four emission peaks located at 562, 597, 644 and 706 nm corresponding to <sup>4</sup><i>G</i><sub>5/2</sub> → <sup>6</sup><i>H</i><sub>5/2</sub>, <sup>4</sup><i>G</i><sub>5/2</sub> → <sup>6</sup><i>H</i><sub>7/2</sub>, <sup>4</sup><i>G</i><sub>5/2</sub> → <sup>6</sup><i>H</i><sub>9/2</sub> and <sup>4</sup><i>G</i><sub>5/2</sub> → <sup>6</sup><i>H</i><sub>1 1/2</sub> transitions respectively. The emission and absorption spectra were analyzed using the Judd–Ofelt theory to calculate various spectroscopic parameters, such as emission cross-section, radiative transition probability, branching ratios, and stimulated emission cross-section. The color coordinates of all the glass samples lie in the orange region of the Commission International de l’Eclairage (CIE) diagram. The results obtained in the present work show that these glasses may be a potential candidate for LED applications.</p>

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Effect of Glass Former Concentration on Spectroscopic and Laser Properties of Telluro-Borate Glasses Doped with Sm3+ Ions

  • 期刊论文

  • 发表日期：

    2025年2月1日

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  • M. Shoaib,
  • Ataullah,
  • I. Khan,
  • Nouf H. Alotaibi,
  • Saikh Mohammad,
  • G. Rooh,
  • I. Ullah,
  • F. Qiao

摘要

Abstract

In this paper, we studied the Na2O–CaO–B2O3–TeO2–Sm2O3 (labeled as NCBT-Sm) for the physical, optical, and luminescence properties of the NCBT-Sm glasses. The XRD study confirmed the amorphous nature of the glass. The density and molar volume increase with increasing concentration of TeO2. We found four emission peaks located at 562, 597, 644 and 706 nm corresponding to 4G5/2 → 6H5/2, 4G5/2 → 6H7/2, 4G5/2 → 6H9/2 and 4G5/2 → 6H1 1/2 transitions respectively. The emission and absorption spectra were analyzed using the Judd–Ofelt theory to calculate various spectroscopic parameters, such as emission cross-section, radiative transition probability, branching ratios, and stimulated emission cross-section. The color coordinates of all the glass samples lie in the orange region of the Commission International de l’Eclairage (CIE) diagram. The results obtained in the present work show that these glasses may be a potential candidate for LED applications.