Circularly Polarized Luminescence of Achiral Carbon Dots in Bi‐Solvent Systems Triggered by Supramolecular Self‐Assembly
Zhiwei Zhang, Chujing Yang, Yankai Dai, Xinying Zhang, Jingqi Chen, Lingyan Feng
Abstract
An innovative strategy for circularly polarized luminescence (CPL) of carbon dots (CDs) has been developed: The achiral CDs displayed contrary supramolecular chirality and opposite CPL in two different bi-solvent systems, which are due to the formation of self-assembled helical nanostructures with two diverse assembly modes (P and M) in aggregate state via intermolecular π-π interactions and differential hydrogen bonding (H-bonding) without the need of any additional element of chirality.
Topics & Concepts
Chirality (physics)LuminescenceSupramolecular chemistryIntermolecular forceSelf-assemblySupramolecular chiralityMaterials scienceQuantum dotHydrogen bondCircular polarizationSolventNanotechnologyNanostructureCrystallographyChemistryOptoelectronicsCrystal structureMoleculeOrganic chemistryOpticsPhysicsChiral symmetryNambu–Jona-Lasinio modelMicrostripQuantum mechanicsQuarkSynthesis and Properties of Aromatic CompoundsLuminescence and Fluorescent MaterialsCarbon and Quantum Dots Applications