A strategy is pioneered for achieving high-temperature phosphorescence using planar rigid molecules as guests and rigid polymers as host matrix. The planar rigid configuration can resist the thermal vibration of the guest at high temperatures, and the rigidity of the matrix further enhances the high-temperature resistance of the guest. The doped materials exhibit an afterglow of 40 s at 293 K, 20 s at 373 K, 6 s at 413 K, and a 1 s afterglow at 433 K. The experimental results indicate that as the rotational ability of the groups connected to the guests gradually increases, the high-temperature phosphorescence performance of the doped materials gradually decreases. In addition, utilizing the property of doped materials that can emit phosphorescence at high temperatures and in high smoke, the attempt is made to use organic phosphorescence materials to identify rescue workers and trapped personnel in fires.

首创了一种利用平面刚性分子作为客体、刚性聚合物作为主体基质来实现高温磷光的策略。平面刚性结构可以抵抗客体在高温下的热振动，基体的刚性进一步增强了客体的耐高温能力。掺杂材料在293 K下表现出40 s的余辉，在373 K下表现出20 s的余辉，在413 K下表现出6 s的余辉，在433 K下表现出1 s的余辉。实验结果表明，随着与客体连接的基团的旋转能力的增加，逐渐增大，掺杂材料的高温磷光性能逐渐下降。此外，利用掺杂材料在高温、高烟环境下能发出磷光的特性，尝试利用有机磷光材料来识别火灾中的救援人员和被困人员。