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Keywords:

  • Photoelectrodes;
  • Porous materials;
  • Solar cells;
  • Titania

Mechanically stable mesoporous nanocrystalline titania thick films can be prepared at low temperature (100 °C) by hydrothermal treatment of an aqueous mixed paste containing nanocrystalline TiO2 powder and Ti salts. The Ti monomers are converted into crystalline TiO2, which acts as a “glue” to chemically connect the TiO2 particles. Highly efficient flexible dye-sensitized solar cells prepared on a conductive plastic film substrate were realized using this method and a conversion efficiency of 2.3 % at AM1.5 was achieved.