Journal
SENSORS
Volume 5, Issue 4-5, Pages 258-265Publisher
MDPI
DOI: 10.3390/s5040258
Keywords
photosynthetic reaction center; nanocrystalline TiO2; photoelectric; light-harvesting
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A new kind of bio-nanocomposite photoelectrode was fabricated through direct immobilization of the bacterial photosynthetic reaction center (RC) proteins on a nanocrystalline TiO2 matrix prepared by anodic electrodeposition. The near-infrared (NIR)visible absorption and fluorescence emission spectra displayed that structure and activity of the RC remained unaltered on the nano-TiO2 film surface. High efficient light-harvesting of the NIR light energy by RC contributed to the distinct enhancement of the photoelectric conversion on such nanoporous matrix, which would provide a new strategy to develop versatile biomimic energy convertors or photoelectric sensors.
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