Photoinduced Electron Transfer and Photovoltaic Response of a MDMO‐PPV:TiO<sub>2</sub> Bulk‐Heterojunction
Paul A. van Hal(Dutch Polymer Institute), Martijn M. Wienk(Energy Research Centre of the Netherlands), J.M. Kroon(Energy Research Centre of the Netherlands), W. J. H. Verhees(Energy Research Centre of the Netherlands), L.H. Slooff(Energy Research Centre of the Netherlands), W.J.H. van Gennip(Dutch Polymer Institute), Pascal Jonkheijm(Dutch Polymer Institute), René A. J. Janssen(Institute of Macromolecular Chemistry)
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Abstract
Combining conjugated poylmers and TiO 2 in hybrid bulk‐heterojunctions is a promising method for producing novel solar cells. Here TiO 2 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).
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