Physical, structural, optical and thermal investigations of TeO2-modified borate glass for solid-state devices

IF 4.4 2区物理与天体物理 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Results in Physics Pub Date : 2025-03-24 DOI:10.1016/j.rinp.2025.108213

A. Khan , L. Shah , M. Arsalan , Ataullah , I. Khan , M. Shoaib , S.A. Khattak , Tanveer Ahmad , P.M. Ismail , G. Rooh , I. Ullah

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Abstract

The impact of varying TeO₂ content (0, 10, and 20 mol%) on the physical, optical, structural, and thermal properties was investigated for Eu₂O₃ doped borate glasses. Physical parameters such as sample density, molar volume, and ion concentration confirm the structural changes resulting from TeO₂ doping. The optical band gap, calculated from absorption spectra using Tauc’s plot, indicates the presence of localized states between the valence and conduction bands. X-ray diffraction (XRD) analyses confirm that the samples exhibit glass characteristics. FTIR studies demonstrate effective Te-O-Te linkages. The thermal properties, were assessed using differential thermal analysis (DTA), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). The DSC analysis revealed a computed △T of approximately 200 °C, indicating good thermal stability for the CNEBT glass. The crystallization onset and peak crystallization temperatures were observed to increase with the addition of TeO₂. The reduced glass transition temperature (T_rg) values suggest that internal crystallization is suppressed. TGA analysis confirmed weight loss attributed to the release of trapped solvents. The findings suggest that these glasses are suitable for use in high-temperature solid-state devices.

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用于固态设备的 TeO2 改性硼酸盐玻璃的物理、结构、光学和热学研究

研究了不同TeO2含量（0、10和20 mol%）对Eu2O3掺杂硼酸盐玻璃的物理、光学、结构和热性能的影响。样品密度、摩尔体积和离子浓度等物理参数证实了TeO2掺杂导致的结构变化。利用Tauc图计算吸收光谱的光学带隙，表明价带和导带之间存在局域态。x射线衍射（XRD）分析证实样品具有玻璃化特征。FTIR研究证实了有效的Te-O-Te联系。热性能通过差热分析（DTA）、差热扫描量热法（DSC）和热重分析（TGA）进行评估。DSC分析显示计算的△T约为200°C，表明CNEBT玻璃具有良好的热稳定性。结晶起始温度和结晶峰温度随TeO2的加入而升高。玻璃化转变温度（Trg）值的降低表明内部结晶受到抑制。TGA分析证实重量减轻归因于被困溶剂的释放。研究结果表明，这些玻璃适合用于高温固态器件。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Results in Physics MATERIALS SCIENCE, MULTIDISCIPLINARYPHYSIC-PHYSICS, MULTIDISCIPLINARY

CiteScore

8.70

自引率

9.40%

发文量

754

审稿时长

50 days

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