The host-guest doping strategy is widely used in the construction of room temperature phosphorescence (RTP) materials. The current methods for developing carbazole (Cz)-based RTP materials are mainly based on crystallization engineering. Herein, we report a general strategy for carbazole-based RTP materials by doping non-crystal benzoylcarbazole (BzCz) phosphor into polymer matrices. BzCz exhibited fluorescence in solution and RTP in powder state. Notably, the doped BzCz powder@PVA film displays yellow RTP emissions with an afterglow duration of around 7 s. Based on the theoretical calculations, it demonstrated that the co-assembly effect between the BzCz and PVA chains could enhance the long-lived RTP systems. This research provides great convenience for developing carbazole (Cz) molecule-doped polymer RTP materials under ambient conditions.

主客体掺杂策略广泛用于室温磷光（RTP）材料的构建。目前开发咔唑（Cz）基RTP材料的方法主要基于结晶工程。在此，我们通过将非晶体苯甲酰基咔唑 (BzCz) 荧光粉掺杂到聚合物基质中，报告了咔唑基 RTP 材料的一般策略。BzCz在溶液中呈现荧光，在粉末状态下呈现RTP。值得注意的是，掺杂的 BzCz 粉末@PVA 薄膜显示出黄色 RTP 发射，余辉持续时间约为 7 秒。基于理论计算，证明了 BzCz 和PVA 链可以增强长寿命的 RTP 系统。该研究为环境条件下开发咔唑（Cz）分子掺杂聚合物RTP材料提供了极大便利。