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Solution processed bilayer photovoltaic devices with nematic liquid crystalsThe crosslinking of polymerisable liquid crystalline semiconductors is a promising approach to solution processable, multilayer, organic photovoltaics.Here we demonstrate an organic bilayer photovoltaic with an insoluble electron donating layer formed by crosslinking a nematic reactive mesogen. We investigate a range of perylene diimide materials, some of which are liquid crystalline, as the overlying electron acceptor layer. We find that the carrier mobility of the acceptor materials is enhanced by liquid crystallinity and that mobility limits performance of the photovoltaic devices.

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