【摘要】 概述兼具热激活延迟荧光(TADF)特性的纯有机室温磷光(RTP)材料的研究进展,阐述TADF-RTP双通道发射的光物理机制,总结晶体工程、主客体作用和聚合物掺杂等分子设计策略,阐明反向系间窜越(RISC)过程的调控方法及三重态非辐射衰减的抑制方法。介绍该类材料在信息防伪、OLED器件和生物成像等领域的应用实例,分析其低毒性、长寿命和高量子产率等性能优势,并对未来发展面临的挑战与方向提出见解。更多还原

【Abstract】 This review summarizes the research progress of pure organic room-temperature phosphorescent(RTP) materials with thermally activated delayed fluorescence(TADF) properties, elaborates on the photophysical mechanism of TADF-RTP dual-channel emission, and concludes the molecular design strategies including crystal engineering, host-guest interaction and polymer doping. It clarifies the approaches for regulating the reverse intersystem crossing(RISC) process and inhibiting triplet non-radiative decay, introduces the application examples in fields such as anti-counterfeiting, OLED devices and bioimaging, analyzes their performance advantages including low toxicity, long lifetime and high quantum yield, and presents the challenges and directions for future development.更多还原