掺杂铽的稀土酒石酸配合物的合成及其荧光性能研究

摘要

The complexes of rare earths (RE=Y,La,Gd) with tartaric acid doped by teribium having the compositions Ln2-xTbxL3*6H2O were synthesized by solution reaction method and were characterized by X-ray diffraction and IR spectra.The results showed that Ln2-xTbxL3 have better fluorescence propertives than Tb2L3,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.%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*6H2O(Ln=Y、La、Gd)，该掺杂配合物比单纯配合物Tb2L3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。据此探讨同多核稀土酒石酸配合物及杂多核稀土酒石酸配合物发光机理。