噻二唑类金属配合物的合成、表征及电致发光性能研究

项目名称： 噻二唑类金属配合物的合成、表征及电致发光性能研究

项目编号： No.20871072

项目类型： 面上项目

立项/批准年度： 2009

项目学科： 电工技术

项目作者： 李荣勋

作者单位： 青岛科技大学

项目金额： 34万元

中文摘要： 噻二唑类化合物特别是1,3,4-噻二唑衍生物因为极强的生物活性被广泛应用于工农业以及临床医学上，近几年，噻二唑衍生物在电致发光领域的应用逐渐得到重视,但仅限于有机小分子领域，其金属配合物在电致发光领域的研究始终未见报道。本项目拟开展噻二唑类金属配合物的合成、表征及电致发光性能研究。首先设计、合成1,3,4联噻二唑衍生物及1,2,5或2,1,3噻二唑衍生物配体，然后和不同的金属盐反应，制备并表征所得金属配合物；采用量子化学方法对所合成材料进行优选，测试所得配合物在溶液中及固体膜状态下的的UV-vis 吸收光谱和荧光光谱，利用循环伏安法和紫外可见吸收光谱法确定各衍生物的带隙及 HOMO 和LUMO 能级，研究其发光机理；通过选择合适的材料和器件结构来有效地调节载流子复合区域，获取相应的发射光谱，制备EL器件，测试评价EL器件的性能参数；希望通过本项目找到一类新型的性能优异的电致发光材料。

中文关键词： 噻二唑；金属配合物；电致发光材料

英文摘要： Nine polynuclear complexes were prepared by reacting the metal salts including Zn（II）and Cd（II）ions with two bisthiazole ligands (H2L1 and H2L2) which were designed and synthesized with 2-amino-thiodiazole and pyridinedicarboxylic acid as the starting materials. The organic electroluminescent properties of these d10 complexes were also studied with the double or three layer structures. The results showed that the emission light of complex [Zn6(O)2(L1)4] was located in the pure white light area with the coordinates of x=0.30, y=0.34. The electroluminescence mechanism of this EL device, which is different from the ordinary doped structure, will provide a promising method for the fabrication of simple and stable EL device with a good reproducibility. The stability and efficiency of EL devices of complexes [Zn5(OH)2(L1)4] and [Zn6(μO)2(L2)4] can be greatly improved when the Alq3 is used as the electron transfer layer, which suggest that these complexes can be improved by using the addition of electron transfer layer. We also synthesized and characterized a lot of complexes using the single crystal X-ray based on the thiazole and triazolothiadiazine ligands. In the past three years, ten papers were published and all the articles have been quoted by SCI and marked with the support of the National Natural Science Foundation (Nos. 20871072).

英文关键词： thiazole; complexes; electroluminescent materials