Journal
APPLIED PHYSICS LETTERS
Volume 83, Issue 26, Pages 5470-5472Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1633673
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Poly(3-thiophenylacetic acid)-polymer-sensitized photoelectrochemical cells comprising of either mesoporous TiO2 or SnO2-ZnO electrodes and the electrolyte consisting with redox complex (I-3(-)/I-) were fabricated and characterized. The addition of ionic liquid, 1-methyl- 3-n-hexylimidazolium iodide, into the electrolyte drastically enhanced the cell performance. The cells consisting of the nanoporous TiO2 electrodes showed the incident photon to current conversion efficiency as high as 60% (at 430 nm), while the highest overall power conversion efficiency was similar to2.4% under the irradiance of 100 mW cm(-2) (air mass 1.5). The overall efficiency of the cells with nanoporous SnO2-ZnO electrodes was similar to1.5% under the same illumination. (C) 2003 American Institute of Physics.
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