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Photoelectrochemical cell using dye sensitized zinc oxide nanowires grown on carbon fibers

Ünalan, Hüsnü Emrah
Di Wei, Di Wei
Suzuki, Kenichi
Dalal, Sharvari
Hiralal, Pritesh
Matsumoto, Hidetoshi
Imaizumi, Shinji
Minagawa, Mie
Tanioka, Akihiko
Flewitt, Andrew J.
Milne, William I.
Amaratunga, Gehan A. J.
Zinc oxide (ZnO) nanowires (NWs) grown on carbon fibers using a vapor transport and condensation approach are used as the cathode of a photoelectrochemical cell. The carbon fibers were obtained by electrospray deposition and take the form of a flexible carbon fabric. The ZnO NW on carbon fiber anode is combined with a "black dye" photoabsorber, an electrolyte, and a platinum (Pt) counterelectrode to complete the cell. The results show that ZnO NW and carbon fibers can be used for photoinduced charge separation/charge transport and current collection, respectively, in a photoelectrochemical cell. (C) 2008 American Institute of Physics.