Summary and Perspectives on Persistently Luminescent Materials

The phenomenon of persistent luminescence and the growth of persistently luminescent materials have witnessed a rapid headway in both research and development, leading to advancement in technological manifestations. After summarizing the key emerging applications of PersLMs described in the previous chapters driven by scientific and technological goals, we discuss several other niche applications that have not been described earlier, including “all-weather” photocatalysis and fluorescent photocatalytic antifouling, persistent luminescence road marking, water tracer sending, and cryogenic sensing. Hence, this chapter highlights and broadens the roles of PersLMs in different fields and disciplines. As the final chapter of this book, we also offer a discussion on the challenges and perspectives that PersLMs possess, such as controlled synthesis of PersL nanoparticles, tuning excitation and emission properties, orthogonal encoding, photonic engineering, trap engineering, biosafety studies, computational, and theoretical studies.