Abstract We report the structural and photoluminescence (PL) properties of Nd3+-doped Y2O3-SiO2 powders (Y2O3-SiO2:Nd3+) as functions of annealing temperature and Nd3+ ion doping concentration. Y2O3-SiO2:Nd3+ powders were prepared using the high-energy ball-milling (HEBM) method, and their structural and PL properties were investigated using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, and PL spectroscopy. The XRD results reveal a cubic phase without impurities, and the peak broadening decreased with an increase in annealing temperature due to the increase in the crystallite size. The PL emission intensity increased with an increase in annealing temperature. The highest PL emission intensity was observed for the 300-min milled mixture annealed at 1000 °C for 1 h with a Nd3+ concentration of 1 mol%. The PL peaks excited by 800 nm radiation were detected, centered at 1080 nm (4F3/2 → 4I11/2) and 1350 nm (4F3/2 → 4I13/2).

中文翻译：

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退火温度和Nd浓度对Nd3+掺杂Y2O3-SiO2粉体结构和光致发光性能的影响

摘要 我们报告了 Nd3+ 掺杂的 Y2O3-SiO2 粉末 (Y2O3-SiO2:Nd3+) 的结构和光致发光 (PL) 特性，作为退火温度和 Nd3+ 离子掺杂浓度的函数。使用高能球磨 (HEBM) 方法制备 Y2O3-SiO2:Nd3+ 粉末，并使用 X 射线衍射 (XRD)、傅里叶变换红外 (FTIR) 光谱和 PL 光谱研究它们的结构和 PL 性质。XRD结果显示立方相不含杂质，由于晶粒尺寸的增加，峰展宽随着退火温度的升高而减小。PL 发射强度随着退火温度的增加而增加。对于在 1000 °C 下退火 1 小时且 Nd3+ 浓度为 1 mol% 的 300 分钟研磨混合物，观察到最高的 PL 发射强度。