Tailoring Multifunctional Carbon Dots via Precursor Stoichiometry: Switching Between Solid‐State Fluorescence and Broadband Absorption Through Aggregation Control. - Yang, Gaixia; Sun, Hao; Hou, Defa; Yang, Fulin; Zou, Yuan; Zhou, Bei; Liu, Lanxiang; Lin, Xu; Du, Guanben (Advanced Science, 2026)