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Surface Dipole Control of Liquid Crystal Alignment

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F16%3A00459923" target="_blank" >RIV/61388980:_____/16:00459923 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1021/jacs.6b02026" target="_blank" >http://dx.doi.org/10.1021/jacs.6b02026</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1021/jacs.6b02026" target="_blank" >10.1021/jacs.6b02026</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Surface Dipole Control of Liquid Crystal Alignment

  • Original language description

    Detailed understanding and control of the intermolecular forces that govern molecular assembly are necessary to engineer structure and function at the nanoscale. Liquid crystal (LC) assembly is exceptionally sensitive to surface properties, capable of transducing nanoscale intermolecular interactions into a macroscopic optical readout. Self-assembled monolayers (SAMs) modify surface interactions and are known to influence LC alignment. Here, we exploit the different dipole magnitudes and orientations of carboranethiol and-dithiol positional isomers to deconvolve the influence of SAM-LC dipolar coupling from variations in molecular geometry, tilt, and order. Director orientations and anchoring energies are measured for LC cells employing various carboranethiol and-dithiol isomer alignment layers. The normal component of the molecular dipole in the SAM, toward or away from the underlying substrate, was found to determine the in-plane LC director orientation relative to the anisotropy axis of the surface. By using LC alignment as a probe of interaction strength, we elucidate the role of dipolar coupling of molecular monolayers to their environment in determining molecular orientations. We apply this understanding to advance the engineering of molecular interactions at the nanoscale.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CA - Inorganic chemistry

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2016

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of the American Chemical Society

  • ISSN

    0002-7863

  • e-ISSN

  • Volume of the periodical

    138

  • Issue of the periodical within the volume

    18

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    11

  • Pages from-to

    5957-5967

  • UT code for WoS article

    000375889100037

  • EID of the result in the Scopus database

    2-s2.0-84971231478