Organic solar cells improving electrodes

A number of approaches are being pursued to modify the electrodes in organic solar cells in order to improve conductivity, selectivity, stability or cost. These include new electrode materials, changes in device processing and additional electrode sub-layers. Most studies have been carried out using the leading material combination, P3HT PCBM, as the active layer. 

There has been a growing interest in inorganic/organic hybrid materials in recent years with expectations for new or improved properties, which are not exhibited or attainable by using the parent materials separately. The usefulness of such materials has been best manifested by recent successful studies of dye-sensitized solar cells, which typically employ thin film electrodes of porous oxide semiconductors such as TiOz, and whose surface is modified with sensitizing... 

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