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Fabrication of Dye-Sensitized Solar Cells with an Open-Circuit Photovoltage of 1 V



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The big 1.0: A dye-sensitized solar cell that combines Mg-containing TiO2 electrodes and an organic photosensitizer 2-cyano-3-(4-N,N-diphenylaminophenyl)-trans-acrylic acid displays the highest open-circuit voltage reported so far (Voc=1.00 V). The electrodes have a negatively shifted conduction band, and the photosensitizer has a sufficiently negative LUMO energy level to inject the photoexited electrons into the electrode efficiently.