Record number :
1796016
Title of article :
Rectified photocurrent of biophotodiode composed of cytochrome c/chlorophyll a heterostructure
Author/Authors :
Choi، نويسنده , , Jeong Woo and Lee، نويسنده , , Doo-Bong and Lee، نويسنده , , Bumhwan and Min، نويسنده , , Junhong and Oh، نويسنده , , Byung-Keun، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Pages :
6
From page :
636
To page :
641
Abstract :
Photoelectrical rectifying property of biomolecular heterostructure is investigated in molecular scale. Cytochrome c and chlorophyll a were used as an electron acceptor and a sensitizer, respectively, in the molecular layer by mimicking photosynthesis. A self-assembled monolayer of cytochrome c was formed on gold surface, and then chlorophyll a was deposited onto the cytochrome c layer by Langmuir–Blodgett method. The formation of cytochrome c/chlorophyll a hetero-layers was confirmed by the surface plasmon resonance spectroscopy, and the surface was observed by the scanning tunneling microscopy. The rectifying property by the scanning-tunneling-spectroscopy based current–voltage characteristics was achieved in the cytochrome c/chlorophyll a hetero-layer. Therefore, proposed hetero-layer can be usefully applied for the development of molecular-scale bioelectronic devices.
Keywords :
Bioelectronic device , cytochrome c , Chlorophyll a , Langmuir–Blodgett film , Rectifying property , SELF-ASSEMBLY
Journal title :
Colloids and Surfaces A Physicochemical and Engineering Aspects
Journal title :
Colloids and Surfaces A Physicochemical and Engineering Aspects
Serial Year :
2008
Link To Document :
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