Faculty of Physics, Astronomy and Informatics, Institute of Physics, Nicolaus Copernicus University, 87-100 Torun, Poland.
Institute of Low Temperature and Structure Research, Polish Academy of Sciences, ul. Okolna 2, 50-422 Wroclaw, Poland.
Int J Mol Sci. 2022 Mar 23;23(7):3493. doi: 10.3390/ijms23073493.
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.
在低温下对沉积在单层石墨烯上的光合复合物组成的混合组件进行荧光激发光谱研究表明,能量向石墨烯的转移效率强烈依赖于激发波长。在蓝绿光光谱区域,这种能量转移的效率大大提高。我们观察到,仅包含两个叶绿素分子的简单光捕获天线(PCP)和与光捕获天线相关的大型光化学活性反应中心(PSI-LHCI)都表现出明显的共振样行为,这表明了这种效应的普遍性。