Rational Design of Covalent Bond Engineered Encapsulation Structure toward Efficient, Long‐Lived Multicolored Phosphorescent Carbon Dots (Small 31/2023)

Phosphorescent Carbon Dots In article number 2206080, Siyu Lu and co-workers design covalent bond engineered encapsulation structures for the preparation of efficient, long-lived multicolor phosphorescent carbon dots (CDs)@silica composites. High temperature calcination collapses the silica and transforms the covalent bonds into shorter and more rigid covalent bonds. The synergistic effect inhibits the vibration and rotation of CDs' luminescence center, resulting in multicolor phosphorescence spanning 465 to 680 nm and with lifetimes of up to 2.11 s.