Abstract
An aqueous solution of a poly(p-phenylenevinylene) (PPV) precursor is combined with a self-assembling monomer to form an inverted hexagonal lyotropic liquid-crystalline mesophase. With this strategy we obtain hexagonally-packed tubular channels ordered on a nanometer scale filled with PPV chains. Isolated and well orientated molecules can be achieved. This nanocomposite is used as an emissive layer in light emitting diodes (LEDs) built up in a sandwich structure. We compare the I/V characteristics, electroluminescence (EL) spectra and the overall performance of the nanostructured PPV to that of pure PPV LEDs.
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