Login / Signup

Organic Persistent Luminescent Materials: Ultralong Room-Temperature Phosphorescence and Multicolor-Tunable Afterglow.

Renjie ChenYan GuanHailong WangYan ZhuXin TanPing WangXueye WangXing-He FanHe-Lou Xie
Published in: ACS applied materials & interfaces (2021)
Organic persistent luminescent materials have attracted special attention due to their significant applications in optoelectronics, sensors, and security technology areas. In this work, a series of organic compounds (1-4) with twisted electron donor-acceptor structures are successfully designed and synthesized, and then the resultant compounds are dissolved in methyl methacrylate (MMA), and afterward, in situ polymerization realizes single-molecular organic room-temperature phosphorescent (RTP) materials (P1-P4). All RTP materials show long lifetime, especially P2 exhibits ultralong lifetime of 1.51 s. When the compounds are grown into single crystals, multicolor-tunable afterglow is obtained at different delay times due to the dual emission of phosphorescence and delayed fluorescence, which is promising to be applied in high-level anticounterfeiting.
Keyphrases
  • room temperature
  • energy transfer
  • ionic liquid
  • water soluble
  • quantum dots
  • light emitting
  • single molecule
  • sensitive detection
  • high resolution
  • flow cytometry
  • global health
  • electron transfer