Eu^(3+)/Tb^(3+)和Eu^(3+)/Pr^(3+)共掺杂P(MMA-co-St)的荧光性能的研究  

Fluorescence study of Eu^(3+)/ Tb^(3+) or Eu^(3+)/ Pr^(3+) ions co-doped P(MMA-co-St)

作　　者：林美娟[1] 章文贡[1] 王文[1] 

机构地区：[1]福建师范大学化学与材料学院,福建福州350007

出　　处：《分子科学学报》2004年第3期24-28,共5页Journal of Molecular Science

基　　金：福建省自然科学基金重点项目(E0120002)

摘　　要：　将不同荧光性能的铽(Tb)、镨(Pr)离子分别与铕(Eu)离子混合,以三异丙氧基稀土的形式掺杂P(MMA-co-St)共聚物,研究Eu3+/Tb3+和Eu3+/Pr3+共掺杂P(MMA-co-St)的荧光性能的变化情况.结果表明,Eu3+/Tb3+掺杂的P(MMA-co-St)中,Tb3+作为能量给予体,Eu3+作为能量接受体,能量转移的结果使Eu3+特征荧光显著增强;Eu3+/Pr3+掺杂的P(MMA-co-St)中,Eu3+的能量向Pr3+转移,致使Eu3+的特征荧光猝灭,Pr3+的荧光略为增强.The triisopropoxyl europium and terbium or praseodymium were mixed and doped into P(MMA-co-St). Fluorescence properties of Eu^(3+)/ Tb^(3+) or Eu^(3+)/ Pr^(3+) ions (co-doped) P(MMA-co-St) were studied. The results show energy transfer occurs from a donor to an acceptor. Tb^(3+) ion behaving as an energy donor transfers energy to Eu^(3+) ion behaving as an energy acceptor in Eu^(3+)/ Tb^(3+) ions co-doped P(MMA-co-St), resulting in a remarkable increase in the Eu^(3+) characteristic fluorescence. Eu^(3+) ion transfers energy to Pr^(3+) ion in Eu^(3+)/ Pr^(3+) ions co-doped P(MMA-co-St), resulting in a quenching of Eu^(3+) ion fluorescence and a increase of Pr^(3+) ion fluorescence.

关 键 词：荧光性能 铽离子 镨离子 铕离子 稀土离子 共掺杂 能量转移 甲基丙烯酸甲酯 苯乙烯 荧光材料 

分 类 号：TN104.3[电子电信—物理电子学]