Room temperature phosphorescence achieved by aromatic/perfluoroaromatic interactions

Room temperature phosphorescence (RTP) has attracted much attention for the applications in information encryption, bio-imaging, displaying, and so on. In this text, persistent RTP emission is mainly achieved by the compact face-to-face packing modes with aromatic/perfluoroaromatic interactions. Moreover, it can be further optimized by halogen substitutions with heavy atom effect, electron-withdrawing property, and steric hindrance, resulting in the prolonged RTP lifetime. Furthermore, the multiple fluorine substitutions endowed these luminogens with the water-resistant property, resulting in the maintained RTP emission with water droplets. Therefore, the aromatic/perfluoroaromatic interactions are not only the efficient approach to achieve persistent RTP, but also extend their application to a humid environment or even in water.