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
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CA - Inorganic chemistry
OECD FORD branch
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Result continuities
Project
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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
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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