掺杂铽的稀土酒石酸配合物的合成及其荧光性能研究

Synthesis and Luminescence Character of Teribium Doped Complexes of Rare Earths with Tartaric Acid

采用溶液反应法合成了掺杂铽的稀土酒石酸配合物Ln2 -xTbxL3(Ln =Y、La、Gd) ,通过元素分析、X射线粉末衍射及红外光谱等对其组成进行了表征 ,测定了该系列配合物的荧光光谱。实验结果表明 ,该系列配合物的组成为Ln2 -xTbxL3·6H2 O(Ln =Y、La、Gd) ,该掺杂配合物比单纯配合物Tb2 L3 具有更好的发光性能 ,而且当x =0 .7～ 1.5时 ,该掺杂配合物的发光最强。

The complexes of rare earths (RE=Y,La,Gd) with tartaric acid doped by teribium having the compositions Ln 2- x Tb x L 3·6H 2O were synthesized by solution reaction method and were characterized by X ray diffraction and IR spectra.The results showed that Ln 2- x Tb x L 3 have better fluorescence propertives than Tb 2L 3,and was the best materials having fluorescence propertives when x =0.7～1.5.This paper had studied on the energy transfer mechanism in these complexes.