Abstract
A thin and flexible sandwich-type photocell with visible-light illumination is presented. The photocell is prepared by a dye-containing polymer coating on a semiconductor-deposited film-type electrode. The advantages in applying a polymer coated electrode to a visible-light-induced photocell with high efficiency are pointed out.
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A K-EC film has an electrically conductive thin layer made of indium tin oxide (ITO) with a 100—500Ω·square−1 surface resistivity and a 80% visible light transmittance. A G-4FK film has a gold thin layer with a 4Ω·square−1 surface registivity and a 60% visible light transmittance. Both films are 1.25×10−4 m in thickness. The supporting polymer film was made of polyester.
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The apparent current quantum efficiency (η) is given by the following equation. Calculation was made assuming all the incident photons to be completely absorbed by the sensitizer and all the excited sensitizers to participate in electron injection into the electrode at 100% efficiency.
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Shimidzu, T., Iyoda, T. A Visible-Light-Induced Sandwich-Type Photocell Using Dye-Containing Polymer Coating. Polym J 16, 919–923 (1984). https://doi.org/10.1295/polymj.16.919
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DOI: https://doi.org/10.1295/polymj.16.919