热激活延迟荧光(TADF)材料于2012年被报道成功用于制备高效OLED器件，获得近100%的器件内量子效率，引起了人们极大的关注，被称为是优于荧光和磷光的第三代OLED发光材料。但是其聚集导致发光猝灭(ACQ)问题仍未解决，而聚集诱导发光(AIE)则能很好地解决ACQ难题。本项目拟通过分子设计把AIE和TADF两种性能整合到一个分子中，合成新型AIE-TADF发光材料，该设计思想还未见有文献公开报道。因此，把AIE和TADF性能整合在一起，开展新型高效有机发光材料研究是本项目的特色。期望能够利用AIE-TADF性能，制备非掺杂高效OLED器件,使得OLED器件性能更上一个台阶。通过系统分析所合成系列化合物的分子结构-AIE-TADF三者关系规律，优化化合物的分子结构和合成工艺，为获得新型高性能AIE-TADF发光材料提供理论依据和科学基础。本项目具有重要的理论研究和应用研究价值。

Thermal activated delayed fluorescence (TADF) materials have been reported in 2012 to fabricate high-efficiency organic light-emitting diodes (OLEDs) with 100% internal quantum efficiency. It has been believed that highly efficient and noble metal free TADF materials would be the ideal emitters for OLEDs, and thus they have been considered to be the third generation luminescent materials, following the fluorescent and phosphorescent materials. However, aggregation-caused quenching (ACQ) problem seems unscalable for these promising TADF materials. Aggregation-induced emission (AIE) has been considered to pave a new avenue to tackle the notorious ACQ. The main purpose of this project is to integrate AIE and TADF into one molecule to prepare novel AIE-TADF luminescent materials. To the best of our knowledge, this design idea has not been reported. It is expected to improve the luminescent efficiency and lift-time of OLEDs to a certain extent by the new synthesized AIE-TADF materials. In order to obtain the new high performance luminescent materials and theoretical basis, the relationship of molecular structure and AIE-TADF properties will be studied in details. Except for the application in light-emitting devices, we will expand their application fields. Thus, the project has important theoretical and actual value.