Title:
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Reconfigurable swarms of colloidal particles electrophoretically driven in nematic liquid crystals
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Author:
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Hernàndez-Navarro, Sergi; Tierno, Pietro; Ignés i Mullol, Jordi; Sagués i Mestre, Francesc
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Other authors:
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Universitat de Barcelona |
Abstract:
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We present experiments where anisometric colloidal microparticles dispersed in a nematic liquid crystal cell with homeotropic anchoring conditions are dynamically assembled by means of liquid-crystal-enabled electrophoresis (LCEEP) using an AC electric field perpendicular to the confining plates. A nematic host with negative dielectric anisotropy leads to a driving force parallel to the cell plates. We take advantage of the resulting gliding anchoring conditions and the degeneracy in the direction of particle motion to design reconfigurable trajectories using a photosensitive anchoring layer (azosilane self-assembled monolayer), as the particle trajectory follows the local director orientation. |
Subject(s):
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-Electroforesi -Col·loides -Electrophoresis -Colloids |
Rights:
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(c) Taylor and Francis, 2015
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Document type:
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Article Article - Accepted version |
Published by:
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Taylor and Francis
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