Nanostructured indium-tin-oxide films fabricated by all-solution processing for functional transparent electrodes.

We investigated nanostructured indium-tin-oxide (ITO) films fabricated by all-solution processing of ITO nanoparticles and a nanoimprint lithography technique. The nanostructured ITO film with one-dimensional periodicity has low sheet resistance of ~200 Ω/sq, high optical transparency of ~80%, and specific transmission spectra due to light diffractions. By using this ITO film as a transparent electrode and an alignment layer of nematic liquid crystals (LCs), we successfully demonstrate the electro-optic performance of LC devices. This functional transparent electrode can give rise to new photonic devices with nanostructures.