Photosynthetic Reaction-Center/Graphene Biohybrid For Optoelectronics
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY(2021)
摘要
Photosynthetic reaction center proteins (RC) purified from purple bacterial strains were deposited on graphene layer prepared by liquid phase exfoliation and light-induced resistance change was measured. By measuring the temperature dependence of the resistance change of the bare and RC covered graphene and comparing with the one inactivated by protein unfolding, two effects were possible to separate. One of them is the resistance change due to temperature effect. The other one clearly indicates a possible electric/electronic interaction between the charge flow in the graphene and the light-induced charge pair within the protein, which is, essentially, different in the open (dark, PBPheo) and closed (light, P(+)BPheo(-)) states. These results provide useful information for designing hybrid bio-photonic devices which are able to absorb and convert light energy.
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关键词
Graphene, Photosynthetic Reaction Center, Biophotonics, Biohybrids
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