Abstract—

Praseodymium incorporated Na₂O–ZnO–TeO₂ (NZT) glass materials were prepared through usual melt quenching technique. The temperature of glass transition and the melting point were obtained by using thermal analyses. The amorphous and ionic nature of the prepared samples was obtained from the recorded X-ray diffraction pattern and FTIR spectra respectively. The optical band gap energy was calculated using UV-Vis absorption spectra and was observed to be decreased from 2.86 to 2.46 eV due to the increasing concentration of Pr³⁺ ions. The peaks of absorption spectra were found. The intense emission was observed from the fluorescence measurement for the emission band of Pr³⁺ doped glass materials. The doping of higher concentrations of Pr³⁺ ions enhanced the intensity of the emission peaks. The CIE chromaticity coordinates were estimated from fluorescence spectra for pure and Pr³⁺ doped glass samples to know the suitability of laser emission of these glass samples. The dielectric constant of the glass materials was observed to be independent of frequency in the large range of frequency (500 Hz to 2 MHz). The variation of conductivity of the glasses was exposed the Arrhenius mechanism of conduction with the temperature.

中文翻译：

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Pr3+ 掺杂 Na2O–ZnO–TeO2 玻璃材料光电性能的增强

摘要-

通过常规熔融淬火技术制备掺镨的Na ₂ O–ZnO–TeO _{2 (NZT)玻璃材料。}通过热分析获得玻璃化转变温度和熔点。分别从记录的 X 射线衍射图和 FTIR 光谱中获得所制备样品的无定形和离子性质。^{使用UV-Vis吸收光谱计算光学带隙能量，并观察到由于Pr 3+}离子浓度的增加，光学带隙能量从2.86 eV降低至2.46 eV 。发现吸收光谱的峰。^{通过对Pr 3+}掺杂玻璃材料发射带的荧光测量观察到强烈的发射。^{较高浓度的 Pr 3+}离子的掺杂增强了发射峰的强度。^{根据纯玻璃样品和Pr 3+}掺杂玻璃样品的荧光光谱估计CIE色度坐标，以了解这些玻璃样品的激光发射的适用性。据观察，玻璃材料的介电常数在大频率范围（500 Hz 至 2 MHz）内与频率无关。玻璃电导率的变化揭示了阿伦尼乌斯传导机制随温度的变化。