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Graphene-Based Liquid Crystal Device

Nano Letters · 2008 · Vol. 8(6) · pp. 1704–1708

Peter Blake✉(University of Manchester)P. D. Brimicombe(University of Manchester)Rahul R. Nair(University of Manchester)Timothy J. Booth(University of Manchester)Da Jiang(University of Manchester)F. Schedin(University of Manchester)Л. А. Пономаренко(University of Manchester)С. В. Морозов(University of Manchester)Helen F. Gleeson(University of Manchester)E.W. Hill(University of Manchester)A. K. Geǐm(University of Manchester)Kostya S. Novoselov(University of Manchester)

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Abstract

Graphene is only one atom thick, optically transparent, chemically inert, and an excellent conductor. These properties seem to make this material an excellent candidate for applications in various photonic devices that require conducting but transparent thin films. In this letter, we demonstrate liquid crystal devices with electrodes made of graphene that show excellent performance with a high contrast ratio. We also discuss the advantages of graphene compared to conventionally used metal oxides in terms of low resistivity, high transparency and chemical stability.

Graphene research and applications Photonic Crystals and Applications Plasmonic and Surface Plasmon ResearchGrapheneMaterials scienceNanotechnologyElectrodeInertTransparent conducting filmLiquid crystalOptoelectronicsOptical transparencyChemical stability

MeSH terms

CrystallizationGraphiteLightMaterials TestingMolecular ConformationParticle SizeSurface PropertiesElectric ImpedanceNanotechnologyMacromolecular SubstancesNanostructuresLiquid Crystals

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Highly conducting graphene sheets and Langmuir–Blodgett films