Molecular Wire Encapsulated into Organogels: Efficient Supramolecular Light-Harvesting Antennae with Color-Tunable Emission

摘要

In natural light-harvesting (LH) assemblies, the light-absorbing chromophores are organized in a specific geometry and encapsulated within the soft gel-like biological tissues. Fast directional migration of excitation energy within the chromophore assemblies before being transferred to the reaction center is crucial to the LH process.[1] The fascination of the architecture and mechanism by which such systems operate has been the driving force to mimic natural LH systems with artificial molecular assemblies.[2]-[5] Research in this direction is further driven by the recent developments in the area of advanced materials, particularly in the design of optoelectronic devices, where energy- and electron-transport processes over a few nanometers are crucial.[2d], [5], [6] The supramolecular chemistry of functional dyes and -conjugated molecules has been playing a significant role in the above developments.