中文摘要：

合成了一系列以2-芳基-5-（α-吡啶基）-1，3，4-噁二唑为中性配体的铕配合物，并对材料的结构和发光性能的关系进行了研究。研究表明；（1）铕配合物在290～350nm都有强烈的紫外吸收，且在紫外光的激发下都能产生铕离子的特征光谱（613nm）；（2）配合物薄膜的荧光激发光潜与配合物溶液的激发光谱相比，由于分子间作用力增大，光谱蓝移了60nm左右，但均为铕离子的特征光谱．以铕配合物为客体，以高分子材料聚乙烯基咔唑（PVK）为主体，制备的电致发光器件的最大亮度为15cd／m^2，在器件结构相同的条件下，配体结构对发光性能有较大的影响：Eu（DBM）3MeO-OXD和Eu（DBM）3F-OXD相比，前者的光致发光强度比后者强，其电致发光的最大亮度却只有后者的四分之一．实验结果表明，通过对中性配体进行结构修饰，可以达到优化铕配合物的发光性能的目的．

英文摘要：

A series of europium complexes based on 2,5-biaryl-1,3,4-oxadiazole ligands were synthesized and their luminescence properties were discussed. The results revealed that： （1 ）Europium complexes had a strong UV absorbance at the wavelength of 290-350 nm, and showed the characteristic PL spectrum of europium ion （ 613 nm）; （2） The structures of ligands had a critical role influence on PL intensity of europium complexes; the maximal excited wavelength from the film of europium complexes had a blue shift of about 60 nm than that from the same europium complexes in solution. Electroluminescence studies indicated that devices using Eu（DBM）3R-OXD as guest and PVK as a host had a maximal brightness of 15 cd/m^2 and the brightness of OELD depended strongly on the structures of europium complexes. Eu（DBM）3 MeO-OXD had a stronger PL intensity than that of Eu（ DBM）3 F-OXD, and the EL intensity of E u（ DBM）3 MeO-OXD was only one fourth of that of Eu（DBM）3F-OXD. The results proved that modifying the structure of ligands could optimize the luminescent, properties of europium complexes.