摘要:概述稀土有机配合物的荧光发光机理, 即有机配体通过对稀土离子的敏化作用, 并将其跃迁的能量传递给稀土离子供其发光;列举芳香胺类、β-二酮类和多胺多羧酸类等新型的有机配体结构。提出稀土有机配合物材料的研究与应用应致力于研发高性能有机配体, 并着手解决极易被水猝灭和量子产率不高等问题。认为合成平面刚性强并对稀土离子进行有效保护的新型有机配体, 可以有效增强稀土有机配合物的荧光强度以改善其应用范围。
关键词:稀土有机配合物;有机配体;敏化作用;荧光性能
Abstract:The luminescence mechanism of rare earth organic complexes is summarized. Organic ligands are sensitized to rare earth ions, and their transition energy is transferred to rare earth ions for their luminescence. Several novel organic ligands, such as aromatic amines, β-diketones and polyamine polycarboxylic acids, are listed. The research and application of rare earth organic complexes should be devoted to the development of high performance organic ligands. It is considered that new organic ligands with strong plane rigidity and effective protection of rare earth ions can be synthesized by solving the problems of easily quenched by water and low quantum yield. It can effectively enhance the fluorescence intensity of rare earth organic complexes and improve their application scope.
Keywords:rare earth organic complexes;organic ligand;sensitization;fluorescence property