Spectral Dependence of the Energy Transfer from Photosynthetic Complexes to Monolayer Graphene.
Marcin SzalkowskiAlessandro SurrenteKamil WiwatowskiZhuo YangNan ZhangJulian D Janna OlmosJoanna M KargulPaulina PlochockaSebastian MaćkowskiPublished in: International journal of molecular sciences (2022)
Fluorescence excitation spectroscopy at cryogenic temperatures carried out on hybrid assemblies composed of photosynthetic complexes deposited on a monolayer graphene revealed that the efficiency of energy transfer to graphene strongly depended on the excitation wavelength. The efficiency of this energy transfer was greatly enhanced in the blue-green spectral region. We observed clear resonance-like behavior for both a simple light-harvesting antenna containing only two chlorophyll molecules (PCP) and a large photochemically active reaction center associated with the light-harvesting antenna (PSI-LHCI), which pointed towards the general character of this effect.