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首次报道了纳米ＹＰＯ４Ｐｒ３＋粉末材料的化学制备方法和光谱特性，结构分析证实共沉淀法制得的样品为粒径２０ｎｍ的纳米微晶．对激发Ｐｒ３＋离子３Ｐ０能级下的光谱性能进行了测量，同在体材料中一样，得到了来自较高能级３Ｐ１强发射．研究表明这是由不同Ｐｒ３＋间有效的｛１Ｄ２×３Ｈ６→３Ｐ１×３Ｈ４｝交叉弛豫能量传递造成的
The chemical preparation method and spectral characteristics of nano-YPO4Pr3 + powder materials were reported for the first time. The structural analysis confirmed that the nano-crystallites with particle size of 20nm were obtained by co-precipitation method. Spectral performance at excitation 3P0 levels of Pr3 + ions was measured, as well as in bulk materials, with a strong emission from the higher energy level 3P1. Studies have shown that this is caused by the effective energy transfer between different Pr3 + {1D2 × 3H6 → 3P1 × 3H4} cross-relaxation energy transfer