Abstract Ce3+:Y2O3, Pr3+:Y2O3, Ce3+:(LaxY1−x)2O3, Pr3+:(LaxY1−x)2O3 nanoparticles were fabricated by laser ablation. The nanopowders consisted of spherical particles with average size of 14 ÷ 17 nm. Ytterbium fiber laser operated in pulse mode at 5 kHz repetition rate and average radiation power of 255 W. The intensity of the laser radiation in focal spot was about 106 W/cm2 with close-to-Gaussian profile. The structural and morphological properties of the nanoparticles were investigated employing TEM, BET, FT-IR, XRD analysis.

中文翻译：

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激光合成的 Ce3+ 和 Pr3+ 掺杂 Y2O3 纳米粒子及其特性

摘要 通过激光烧蚀制备了 Ce3+:Y2O3、Pr3+:Y2O3、Ce3+:(LaxY1−x)2O3、Pr3+:(LaxY1−x)2O3 纳米颗粒。纳米粉末由平均尺寸为 14 ÷ 17 nm 的球形颗粒组成。掺镱光纤激光器以脉冲模式工作，重复频率为 5 kHz，平均辐射功率为 255 W。焦点处的激光辐射强度约为 106 W/cm2，接近高斯分布。采用TEM、BET、FT-IR、XRD分析研究了纳米颗粒的结构和形态特性。