SrAl_2O_4:Eu^(2+),Dy^(3+)的发光性质及机理

The Luminescent Properties and Machanism of SrAl_2O_4: Eu^(2+),Dy^(3+)

研究了Eu2＋、Dy3＋共激活的SrAl2O4体系的发光性能和能量传输。结果表明，Dy3＋、Eu2＋共存时，Eu2＋的发光强度远远大于无Dy3＋时的发光强度，证明Dy3＋对Eu2＋的发光有敏化作用。Dy→Eu2＋能量传输的方式为籍助于载流子的能量输运。

The Luminescent properties and energy transfer of Dy3+Eu2+coactivated SrAl2O4 were reported in this paper The experimental results indicate that the luminescent inetnsity of Eu2+in SrAl2O4:Eu2+,Dy3+is much stronger than one in SrAl2O4:Eu2+,which comfirm that Dy3+ can sensitize the luminescent of Eu2+ The form of energy transfer Dy3+Eu2+ depends on carriers migration