➀ Professor Chiyoung Park developed a solar-powered biohydrogen generation system using bacteria-carrying hydrogenase enzymes. The system employs a new supramolecular fluorophore nanocomposite and achieves high hydrogen production rates. ➁ The system utilizes the nanosurface adsorption properties of tannic acid-based metal-polyphenol polymers to regulate the self-assembly and optical properties of fluorescent dyes. ➂ The research is supported by the National Research Foundation of Korea and the Ministry of Trade, Industry and Energy.