摘要
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．
The chemical preparation method and spectrum characteristics of YPO 4∶Pr 3+ nanocrystal powder are reported for the first time. The structure analysis shows that the sample is nano material with radius of about 20nm. A strong emission from 3P 1 level of Pr 3+ ion is observed under excitation at 3P 0 level by a Ar + laser set at 488nm. This is caused by the efficient cross relaxation energy transfer of { 1D 2× 3H 6→ 3P 1× 3H 4} between different Pr 3+ ions.
出处
《发光学报》
EI
CAS
CSCD
北大核心
1999年第2期102-105,共4页
Chinese Journal of Luminescence
基金
国家自然科学基金
国家教委高校博士点基金
国家教委留学回国人员科研启动基金
中国科学院留学经费择优支持基金
