基于聚集态可控发光的有机双核环金属配合物电致白光材料的构筑及其聚合物白光器件的性能研究

项目名称： 基于聚集态可控发光的有机双核环金属配合物电致白光材料的构筑及其聚合物白光器件的性能研究

项目编号： No.51273168

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 一般工业技术

项目作者： 刘煜

作者单位： 湘潭大学

项目金额： 80万元

中文摘要： 针对目前单掺杂单发光层白光聚合物电致发光器件（WPLEDs）的发光效率偏低、色度稳定性差、单分子电致白光材料种类偏少等关键科学问题，设计合成一系列含稠环芳烃取代的三苯胺（或稠环芳烃取代咔唑，稠环芳烃取代二噻吩并吡咯）蓝色荧光发色团和环金属铂/铱配合物蓝色磷光发色团的、具有供-受体结构的新型有机双核环金属铱/铂配合物。研究这些材料的成膜性、热稳定性、光物理、电化学和电致发光等性能；探索分子的构筑方式和荧光/磷光发色团的结构对聚集态发光、分子内/间的能量传递及聚合物电致发光器件的光电性能的影响，获得具有知识产权和发展潜力的新型基于聚集态可控发光的星型有机双核环金属配合物电致白光材料及其高效稳定的单掺杂单发光层 WPLEDs， 揭示有机双核环金属配合物单分子电致白光材料的分子构筑规律。本项目对于创新单分子电致白光材料，促进它们在环境友好型高效 WPLEDs 中的应用，具有重要的意义。

中文关键词： 聚集态发光；双核环金属配合物；环金属铱/铂配合物；合成；白光聚合物发光器件

英文摘要： For the series of problems, such as low luminous efficiency, poor chromaticity stability and sole of single white-emitting materials, a series of novel binuclear cyclometalated iridium/platinum complexes with D-A structure will be designed and synthesized, which containing the blue-emitting fluorescent and phosphorescent chromosphores. The blue-emitting fluorescent chromophores are mainly triphenyl amine-, carbazole- and dithieno pyrrole-based derivatives replaced by fused aromatic, respectively. Firstly, the properties of the dispersibility, thermal stability, optophysical, electrochemical and electroluminescence will be studied. Secondly, the influence of the structures of the fluorescent and phosphorescent chromophores on the excimers emission, the intra/intermolecular energy transfer and the performance of polymer light-emitting diodes (WPLEDs) will be explored. Finally, the star binuclear cyclometalated iridium/platinum complexes used as organic single white-emitting materials and their high-efficiency WPLEDs with single-emission layer will be obtained. The rule of constructing organic single white-emitting materials will also be made. This project has an important significance on the development of single white-emitting materials and their application in the high-efficiency WPLEDs.

英文关键词： Aggregation emission；Binuclear complexes；cyclometalated Ir/Pt complexes；Synthesis；White polymer light-emitting diodes