圆偏振发光性质的热活化延迟荧光材料及电致发光器件

Circularly Polarized Thermally Activated Delayed Fluorescence Materials and Their Applications in Organic Light-Emitting Devices

具有圆偏振发光性质的热活化延迟荧光(circularly polarized thermally activated delayed fluorescence, CP-TADF)材料,因其在数据存储、生物成像以及3D显示等领域的应用前景,受到学者们的广泛关注。基于此类材料所制备的圆偏振热活化延迟荧光器件展现出优异的器件性能。本文从圆偏振热活化延迟荧光材料的发光机理及分子设计策略出发,依据CP-TADF材料构筑方法的不同,概括了其结构设计策略,系统地综述了各种类型CP-TADF材料的分子结构和光电性能的关系及其在电致发光器件领域的应用,最后探讨了目前CP-TADF材料存在的问题,并展望了其未来发展前景及挑战。

Thermally activated delayed fluorescence materials with circularly polarized luminescence characteristics have received extensive attention due to their application prospects in data storage, bio-imaging, and 3 D display. The circularly polarized thermally activated delayed fluorescence(CP-TADF) devices based on these materials exhibit excellent circularly polarized electroluminescence performance. In this paper, starting from the molecular design strategies and luminescence mechanism of CP-TADF molecules, we comprehensively summarize their design strategies according to the different construction methods, and the chemical structures, photoelectric properties, as well as applications in electroluminescent devices are systematically reviewed. Finally, we discuss the current problems of CP-TADF materials, and our outlook on their future development prospects and challenges is also given.