KMgF_3∶Ce^(3+),Tb^(3+)纳米粒子中Ce^(3+)→Tb^(3+)的发光及能量传递  

Luminescence and Energy Transfer of Ce～(3+)→Tb～(3+) in KMgF_3∶Ce～(3+), Tb～(3+) Nanoparticles

作　　者：张海燕[1] 曹亮军[1] 王琳琨[1] 郭海燕[1] 祁芸芸[1] 闫景辉[1] 

机构地区：[1]长春理工大学化学与环境工程学院,长春130022

出　　处：《无机化学学报》2010年第5期822-826,共5页Chinese Journal of Inorganic Chemistry

基　　金：吉林省科技厅基金(No.20050507)资助项目

摘　　要：利用微乳液方法,合成了铈、铽共掺杂的氟镁钾纳米粒子,研究了体系中Ce3+→Tb3+的发光特性以及它们之间的相互作用,结果表明KMgF3∶Ce3+,Tb3+纳米粒子中存在Ce3+→Tb3+的能量传递过程,即Ce3+可以将吸收的能量直接传递给Tb3+离子,使得Tb3+的绿色发光强度大为增加。Nanoparticles of KMgF3∶Ce3＋, Tb3＋ were prepared by microemulsion method. Luminescence properties and interactions between Ce3＋ and Tb3＋ were studied.The results show that there is an energy transfer process from Ce3＋ to Tb3＋ in KMgF3∶Ce3＋, Tb3＋ nanoparticles, namely, Ce3＋ ion can directly transfer the absorbed energy to Tb3＋ ion, which makes the green luminescence intensity of Tb3＋ ion stronger.

关 键 词：KMgF3∶Ce3+ Tb3+ 纳米粒子 能量传递 

分 类 号：O614.113[理学—无机化学] O614.22[理学—化学]