Pr^3＋、Tb^3＋共掺的NaGdF4和GdB3O6的VUV荧光性质  

Luminescent Properties of NaGdF_4 and GdB_3O_6 Co-doped with Pr^(3+) and Tb^(3+) under VUV Excitation

作　　者：由芳田[1] 张新国[1] 时秋峰[1] 彭洪尚[1] 黄世华[1] 黄艳[2] 陶冶[2] 

机构地区：[1]发光与光信息教育部重点实验室北京交通大学光电子技术研究所,北京100044 [2]中国科学院高能物理研究所同步辐射实验室,北京100049

出　　处：《发光学报》2012年第5期459-464,共6页Chinese Journal of Luminescence

基　　金：国家自然科学基金(10979009);高校基础科研业务费(2011JBM296,2010JBZ006,2010JBZ003)资助项目

摘　　要：分别制备了单掺和双掺Pr3+和Tb3+的NaGdF4和GdB3O6等材料,研究了其真空紫外荧光性质。发现在VUV光的激发下,Gd3+离子在Pr3+和Tb3+的能量传递过程中起着重要的作用。Gd3+离子不存在时,Pr3+和Tb3+之间没有明显的能量传递过程。当体系中加入Gd3+离子后,Pr3+将大部分能量传递给中间体Gd3+,Gd3+再将能量传递给Tb3+,实现了将Pr3+的近紫外光转化为Tb3+的绿色光的转换过程。NaGdF4 and GdB3O6 doped with Pr3＋ and/or Tb3＋ were prepared and their VUV excited fluorescence properties were studied.Gd3＋ plays an important role in the energy transfer process from Pr3＋ to Tb3＋ upon the excitation of VUV photons.No obvious energy transfer from Pr3＋ to Tb3＋ was observed in the absence of Gd3＋;on the contrary,Pr3＋ transfer most of the energy to Gd3＋ after Gd3＋ was added,then the energy was transferred from Gd3＋ to Tb3＋.So the conversion from the near ultraviolet emission of Pr3＋ to the green emission of Tb3＋ was realized.

关 键 词：能量传递 稀土离子 真空紫外 量子剪裁 

分 类 号：O482.31[理学—固体物理]