金属有机络合物在分析化学中有着广泛的应用。而用做发光材料还是近些年才开始的。有机电致发光（ＥＬ）材料从分子结构上区分可分为（１）有机色素（２）螯今型金属络合物（３）有机高分子，其中ＥＬ发光性能最好的则是Ａｌ￣（３＋）－８－羟基喹啉的络合物，基于这种观点本文系统地评述了螯今型金属络合物如何满足有机ＥＬ器件要求及近年来用各种金属络合物研制出的有机ＥＬ器件的进展 Metal organic complexes have a wide range of applications in analytical chemistry. The use of light-emitting materials or in recent years began. Organic electroluminescent (EL) materials can be distinguished from the molecular structure by (1) organic dyes (2) chelate metal complexes (3) organic polymers, of which the best EL luminescence properties are Al ~ ( 3 +) - 8-hydroxyquinoline. Based on this viewpoint, we systematically reviewed how chelate-type metal complexes meet the requirements of organic EL devices and organic ELs developed with various metal complexes in recent years Device progress