High-yield upcycling of feather wastes into solid-state ultra-long phosphorescence carbon dots for advanced anticounterfeiting and information encryption
Matrix-free solid-state RTP with an average lifetime of 0.50 s is realized in the carbon dots (CDs) synthesized by the one-pot hydrothermal process of powder made of feather wastes. The room-temperature phosphorescence lifetime is further prolonged to 1.97 s by employing polyvinyl alcohol (PVA) and phytic acid (PA). Subsequently, a novel CDs/PVA/PA ink is successfully …