Molecular mechanism of biocompatible clusteroluminogens from citric acid and l-lysine.

ABSTRACT: Clusteroluminescence in non-conjugated systems has garnered significant attention for the development of advanced light-emitting materials, however, the understanding of the underlying mechanism remains a challenge. Herein, we report a facile, one-step strategy to prepare unconventional dual-mode luminescent materials by thermal treatment of aqueous citric acid (CA) and l-lysine (Lys). These materials exhibit bright fluorescence (The quantum yield is up to 43.2%) and remarkably long-lived room-temperature phosphorescence (RTP, up to 5 s). Combined experimental characterization and theoretical calculations were used to reveal the underlying dual emission mechanisms. Theoretical calculations revealed a reduced HOMO-LUMO energy gap upon blending of the CA and Lys and formation of ionic intera

SUBMITTER: Zhang Q 

PROVIDER: S-EPMC12797206 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature