卤化亚铜配合物的光致发光与电致发光研究

项目名称： 卤化亚铜配合物的光致发光与电致发光研究

项目编号： No.21201011

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 无机化学

项目作者： 刘志伟

作者单位： 北京大学

项目金额： 25万元

中文摘要： 为节约能源和减少环境污染，研发高效率、低成本的新一代显示和固态光源技术势在必行，其中有机发光二极管(OLED)最具竞争潜力。目前，铱配合物OLED虽然具有最高的发光效率，但是铱在自然界中含量低、价格贵，严重制约了其商业化应用。廉价的Cu(I)配合物OLED尽管在理论上也具有100%的最大内量子效率，但是大多数Cu(I)配合物热稳定性差，无法通过传统的真空蒸镀方法制备器件，限制了其作为新型OLED材料的研究。本项目拟以卤化亚铜配合物(CuX)mLn（X = I, Br, Cl；L = 配体）为研究对象，探讨材料和器件的可控合成及电光的高效转换。设计、合成一系列有机小分子配体/主体材料，针对热稳定性差的配合物，发展共蒸原位反应技术，制备多种结构和发光颜色的(CuX)mLn配合物和高效率、全彩色及白光Cu(I)配合物OLED，为低成本、新型、高效OLED材料与器件的研制奠定理论和技术基础。

中文关键词： 有机发光二极管；亚铜配合物；共蒸；原位反应；

英文摘要： In order to solve two current big problems, energy crisis and environment pollution, the development of display and solid state lighting technologies with high efficiency and low cost properties is highly necessary. Organic light-emitting diode (OLED) is considered as one of the most competitive technologies. So far, OLEDs using phosphorescent emissive iridium-based complexes have been achieved the highest efficiency. Unfortunately, iridium is low in natural abundance and very expensive, which restricts its commercial application. Though cheap Cu(I) complexes based OLEDs theoretically have the maximum internal quantum efficiency of 100%, most Cu(I) complexes are unstable toward sublimation and hence not amenable to the vacuum deposition methods typically used to fabricate OLEDs, few devices containing such emitters have been explored. In this project, we study cuprous halide complexes (CuX)mLn（X = I, Br, Cl; L = Ligand), to explore the controllable synthesis of materials and OLEDs, as well as to realize high efficiency conversion from electricity to light. In details, a series of ligands/hosts L will be synthesized. By in situ codeposition of the ligand/host L and CuX, amorphous films containing thermal unstable complex (CuX)mLn with different chemical structures and emission colors could be fabricated, hence OL

英文关键词： organic light emitting diodes；Cu(I) complex；codeposition；in situ reaction；