Organic room-temperature phosphorescent polymers for efficient X-ray scintillation and imaging

Materials that exhibit visible luminescence upon X-ray irradiation show great potential in the medical and industrial fields. Pure organic materials have recently emerged as promising scintillators for detection radiography, due to their diversified design, low cost, facile preparation. However, recent progress efficient radioluminescence has mainly focused on small molecules, which are inevitably associated with processability repeatability issues. Here, a concise strategy is proposed prepare radioluminescent polymers multiple emission colors from blue yellow high brightness an amorphous state by radical copolymerization of negatively charged polyacrylic acid different positively quaternary phosphonium salts. One obtained exhibits excellent photostability under dosage 27.35 Gy limit 149 nGy s ? 1. This performance superior conventional anthracene-based scintillators. Furthermore, simply drop-casting polymer methanol solution quartz plate, transparent scintillator screen was successfully fabricated imaging resolution 8.7 line pairs mm The pure phosphorescent highly were demonstrated first time, reported herein offers pathway expand application range