Pyrochlore structured nanocrystals could have large solubility of rare-earth ions, making them promising for application in various light emitting materials and immobilization of radioactive nuclear waste. In this work, rare-earth doped pyrochlore structured nanocrystals were precipitated in glasses using melt-quenching and subsequent thermal treatment. Lu³⁺ along with Yb³⁺ and Er³⁺ ions were doped into the glasses, and Yb³⁺ and Er³⁺ were employed as probes to illustrate the incorporation of rare-earth ions into pyrochlore nanocrystals. X-ray diffraction patterns and transmission electron microscopy showed the precipitation of pyrochlore nanocrystals with average diameters of 13–15 nm upon thermal treatment. Energy dispersive spectroscopy, absorption spectra, visible and near-infrared emission spectra all confirmed the incorporation of rare-earth ions into these pyrochlore structured nanocrystals.

烧绿石结构的纳米晶体可能具有较大的稀土离子溶解度，使其有望用于各种发光材料和放射性核废料的固定化。在这项工作中，使用熔融淬火和随后的热处理在玻璃中沉淀了稀土掺杂的烧绿石结构纳米晶体。Lu ³⁺与Yb ³⁺和Er ³⁺离子一起掺杂到玻璃中，Yb ³⁺和Er ³⁺探针被用作探针来说明稀土离子掺入烧绿石纳米晶体中。X射线衍射图和透射电子显微镜显示，热处理后平均直径为13–15 nm的烧绿石纳米晶体沉淀。能量色散光谱，吸收光谱，可见光和近红外发射光谱都证实了稀土离子掺入到这些烧绿石结构的纳米晶体中。