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.
出处
《分子科学学报》
CAS
CSCD
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)
