Ce^(3+)与Tb^(3+)共激活的Ba MgF_4体系的发光性质与能量传递

Luminescent Properties and Energy Transfer in Ba MgF_4 Coactivated by Ce^(3+)and Tb^(3+)

研究了BaMgF4 体系中Ce3 + 和Tb3 + 离子的发射光谱以及它们之间的能量传递现象。Ce3 + 可以将吸收的能量直接传递给Tb3 + 离子 ,使得Tb3 + 的绿色发光强度大大增加。

The emission spectra and energy transfer of Ce3+ and Tb3+in BaMgF4 were investigated. The energy absorbed by Ce3+ transfered to Tb3+ nonradiatively. The luminescent intensity of Tb3+ was greatly enhanced.