title: Liquid Crystal Alignment on Solution Derived Zinc Oxide Films via Ion Beam Irradiation.
abstract: A 75-nm-thick ZnO film was deposited by a sol-gel method on indium-tin oxide (ITO)-coated glass. This film served as a liquid crystal (LC) alignment layer. We report the fabrication and characteristics of this film after ion-beam (IB) irradiation. Uniform LC alignment was achieved at an IB incident energy above 2400 eV. The IB-treated ZnO surface was analyzed by X-ray photoelectron spectroscopy (XPS), monitoring the intensity of the Zn 2p and O 1s peaks as a function of IB-irradiation energy density. The electro-optical (EO) characteristics of a twisted nematic-liquid crystal display (TN-LCD) were comparable to rubbed polyimide.
authors.forename: Hong-Gyu
authors.initials: HG
authors.lastname: Park
authors.forename: Jae-Jun
authors.initials: JJ
authors.lastname: Han
authors.forename: Dae-Shik
authors.initials: DS
authors.lastname: Seo
mesh_terms: D008855:Microscopy, Electron, Scanning; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D015034:Zinc Oxide