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Keywords:

  • Conjugated polymers;
  • Organic-inorganic hybrid materials;
  • Photovoltaic cells;
  • Solar cells;
  • Titanium oxides, nanocrystalline

Combining conjugated poylmers and TiO2 in hybrid bulk-heterojunctions is a promising method for producing novel solar cells. Here TiO2 is introduced into a poly(p-phenylene vinylene) layer. Nanometer-scale phase separation allows efficient photoinduced charge transfer between the two components. The films can be used as the active layer in a photovoltaic cell and provide external quantum efficiencies of up to 11 % (see Figure).