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Spectroscopic and electrical properties of europium doped bismuth antimony fluoroborate glasses
Radiation Physics and Chemistry ( IF 2.9 ) Pub Date : 2024-03-22 , DOI: 10.1016/j.radphyschem.2024.111708
Gunjan Mahajan , M.V.V.K Srinivas Prasad , K. Swapna , Sk Mahamuda , M. Venkateswarulu , G.G. Dhar , A.S. Rao

Strong luminescence in the red spectral region is a well-known characteristic of the trivalent europium ion (Eu). We investigate a novel europium doped glassy substance for their use in optical devices, optoelectronics and radiation shielding. By using the traditional melt quenching technique, Bismuth antimony fluoroborate glasses are synthesized. XRD investigations support the amorphous nature of the material. Spectral measurements of absorption, photoluminescence (PL) excitation, PL emission, and PL decay curve are made in order to study the lasing properties. Judd-Ofelt (J-O) intensity parameters, from emission spectra, exhibit the trend Ω> Ω furthermore used to find the radiative parameters-transition probability (A), branching ratio (β), radiative lifetime (τ), and stimulated emission cross-section (σ) for all the glasses. Decay curves show single exponential behavior and is used to find the quantum efficiency of the prepared glasses. The dielectric properties (dielectric constant (ɛ′), dielectric loss (ɛ″)), impedance and electrical conductivity (σ) of these glasses with variation in frequency have also been studied at the ambient temperature. The radiation shielding properties are evaluated for the photon energy range (1 keV–15 MeV). Based on the trends noticed in the radiative parameters, electrical conductivities and radiation shielding parameters, the present glasses could be found useful as optoelectronic devices, non-linear optical materials, battery anode materials and radiation shielding purposes.

中文翻译:

掺铕铋锑氟硼酸盐玻璃的光谱和电学性能

红色光谱区的强发光是三价铕离子 (Eu) 的一个众所周知的特性。我们研究了一种新型掺铕玻璃状物质,用于光学器件、光电子学和辐射屏蔽。采用传统的熔融淬火技术,合成了氟硼酸铋锑玻璃。 XRD 研究支持该材料的非晶态性质。为了研究激光特性,进行了吸收、光致发光 (PL) 激发、PL 发射和 PL 衰减曲线的光谱测量。 Judd-Ofelt (JO) 强度参数,来自发射光谱,表现出 Ω> Ω 的趋势,此外还用于查找辐射参数 - 跃迁概率 (A)、分支比 (β)、辐射寿命 (τ) 和受激发射交叉 -所有眼镜的截面 (σ)。衰减曲线显示单指数行为,用于确定所制备玻璃的量子效率。还研究了这些玻璃在环境温度下随频率变化的介电性能(介电常数(ɛ′)、介电损耗(ɛ″))、阻抗和电导率(σ)。辐射屏蔽性能在光子能量范围(1 keV-15 MeV)内进行评估。基于辐射参数、电导率和辐射屏蔽参数的趋势,本发明的玻璃可用作光电器件、非线性光学材料、电池阳极材料和辐射屏蔽用途。
更新日期:2024-03-22
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