1, 8-Naphthylimide (NI) was doped in polyvinyl alcohol (PVA) or polyacrylic acid (PAA) matrices (0.2%, mass ratio) to achieve persistent room-temperature phosphorescence (pRTP). The resulting pRTP can be attributed to the formation of a rigid environment constructed by abundant hydrogen bonds. Moreover, due to the overlap between NI's phosphorescent emission and Rhodamine B's absorption, the color-tunable persistent luminescence of RB@NI@PVA and RB@NI@PAA doped films were successfully achieved through phosphorescent resonance energy transfer strategy. This work provided an effective way to achieve the pRTP of NI by polymer doping, as well as persistent luminescence of Rhodamine B by phosphorescence resonance energy transfer from NI in the developed phosphorescent film system.

1, 8-萘酰亚胺 (NI) 掺杂在聚乙烯醇 (PVA) 或聚丙烯酸 (PAA) 基质中 (0.2%, 质量比) 以实现持久的室温磷光 (p RTP )。由此产生的p RTP 可归因于由丰富的氢键构成的刚性环境的形成。此外，由于NI的磷光发射和罗丹明B的吸收之间的重叠，通过磷光共振能量转移策略成功实现了RB@NI@PVA和RB@NI@PAA掺杂薄膜的颜色可调持久发光。这项工作提供了一种有效的方法来实现p通过聚合物掺杂对 NI 进行 RTP，以及在开发的磷光膜系统中通过 NI 的磷光共振能量转移持续发光罗丹明 B。