P. Wang, S.M. Zakeeruddin, R. Humphry-Baker, J.E. Moser and M. Grätzel Molecular-Scale Interface Engineering of TiO2 Nanocrystals: Improve the Efficiency and Stability of Dye-Sensitized Solar Cells Advanced Materials 15
Co-grafting an amphiphilic polypyridyl ruthenium sensitizer and 1-decylphosphonic acid on TiO2 semiconductor nanocrystals has resulted in a long-term thermally stable dye-sensitized solar cell (see Figure) with higher than 7 % power conversion efficiency. The extraordinary stability of this high-efficiency device under both thermal stress and light soaking matches the durability criteria for outdoor applications of solar cells.
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