Photoinduced Electron Transfer and Photovoltaic Response of a MDMO‐PPV:TiO₂ Bulk‐Heterojunction

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).