BO-SiO-WO-GaO glasses doped with Dy were synthesized using the high-temperature melting method. The effects of different BO/SiO ratios, different Dy ions doping concentrations, and alkali metal oxides on the glass structure and optical properties were investigated through the test methods of X-ray diffraction, differential scanning calorimetry, Fourier infrared spectra, and photoluminescence spectra. The oscillator strength and intensity parameters were determined using Judd-Ofelt theory, and the optical band gap for both indirect and direct allowed transitions were calculated. The glasses exhibited optimal luminous performance when the BO/SiO ratio was 50:33, DyO doping concentration was 0.5 mol%, and KO concentration was 4 mol%, excited by a wavelength of 388 nm. The CIE coordinates falling within the white light region suggest the potential application of these glasses in white solid-state lighting.

中文翻译：

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Dy3+掺杂硼硅酸盐玻璃的Judd-ofelt分析及发光性能


采用高温熔融法合成了掺 Dy BO-SiO-WO-GaO 玻璃。通过X射线衍射、差示扫描量热法、傅里叶红外光谱和光致发光光谱等测试方法，研究了不同BO/SiO比、不同Dy离子掺杂浓度和碱金属氧化物对玻璃结构和光学性能的影响。使用 Judd-Ofelt 理论确定振荡器强度和强度参数，并计算间接和直接允许跃迁的光学带隙。当BO/SiO比为50:33、DyO掺杂浓度为0.5 mol%、KO浓度为4 mol%时，在388 nm波长激发下，玻璃表现出最佳的发光性能。 CIE 坐标落在白光区域内表明这些玻璃在白色固态照明中的潜在应用。