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    Langmuir Blodgett films of arachidic acid and a nematic liquid crystal: Characterization and use in homeotropic alignment

    Year: 2006

    Journal: Thin Solid Films, Volume 496, Issue 2, 21 February 2006, Pages 601-605, 20111221

    Authors: John Collins, Denis Funfschilling and Michael Dennin

    Organizations: Department of Physics and Astronomy, University of California at Irvine, Irvine, California 92697-4575, USA,

    We study the behavior of a mixed Langmuir monolayer consisting of a fatty acid and a nematic liquid crystal. We demonstrate that the mixed monolayer successfully transfers as a Langmuir–Blodgett film and characterize the transferred film using UV spectroscopy. An important application of Langmuir–Blodgett films is in the alignment of liquid crystals for electro-optical applications, such as displays. We show that including the liquid crystal in the Langmuir–Blodgett film produces homeotropic alignment for a system which fails to align by other standard techniques.