Abstract The trivalent Europium (Eu3+) ions with varied concentrations doped in sodium-based fluoroborosilicate glasses were prepared via the melt quenching method. The prepared glasses were subjected to study their structural, optical, and fluorescence properties. The bonding and J-O intensity parameters (Ω2, Ω4) were calculated from the obtained absorption spectrum and emission spectra, respectively. Two phonon sidebands were observed in the vibronic excitation spectrum. Among all prepared glasses, the prepared glass doped by 1.5 mol% Eu3+ ions exhibits the maximum emission intensity. For the all prepared glasses, intensity of electric dipole transition (5D0 → 7F2) has been varied with proportionate to concentration of trivalent Eu ions. Radiative parameters like bandwidth (Δλeff), radiative transition probability, experimental and calculated branching ratios and stimulated emission cross-section were calculated. Eu3+ ions excited state (5D0 level) lifetime was calculated using fluorescence decay analysis for varying concentrations of Eu3+ ions in prepared fluoroborosilicate glasses. The results obtained reveal that the investigated fluoroborosilicate glasses could be used for the design and development of red laser (612 nm) and display device applications.

中文翻译：

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Eu3+ 离子嵌入 SiO2–B2O3– CaF2– NaF– Na2O 玻璃的声子边带分析、结构和光谱特性

摘要 采用熔体淬火法制备了掺杂在钠基氟硼硅玻璃中的不同浓度的三价铕(Eu3+)离子。对制备的玻璃进行结构、光学和荧光特性研究。键合和 JO 强度参数 (Ω2, Ω4) 分别由获得的吸收光谱和发射光谱计算。在振动激发光谱中观察到两个声子边带。在所有制备的玻璃中，掺入 1.5 mol% Eu3+ 离子的制备玻璃表现出最大的发射强度。对于所有制备的玻璃，电偶极跃迁（5D0 → 7F2）的强度与三价 Eu 离子的浓度成正比。辐射参数，如带宽 (Δλeff)、辐射跃迁概率、计算了实验和计算分支比和受激发射截面。Eu3+ 离子激发态（5D0 能级）寿命使用荧光衰减分析对制备的氟硼硅酸盐玻璃中不同浓度的 Eu3+ 离子进行计算。获得的结果表明，所研究的氟硼硅酸盐玻璃可用于红色激光（612 nm）和显示设备应用的设计和开发。