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A Supramolecular Artificial Light‐Harvesting System with an Ultrahigh Antenna Effect

An efficient artificial light‐harvesting system is fabricated from a cyclic polysaccharide, sulfato‐β‐cyclodextrin (SCD); an aggregation‐induced emission molecule, an oligo(phenylenevinylene) derivative (OPV‐I); and a fluorescent dye, nile red (NiR), via noncovalent interactions in an aqueous solution. In this system, the OPV‐I/SCD supramolecular assembly acts as a donor, and NiR that is loaded into the OPV‐I/SCD assembly acts as an acceptor. Significantly, an efficient energy‐transfer process occurs between the OPV‐I/SCD assembly and the loaded NiR, leading to an extremely high antenna effect.