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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/67059
Reconfigurable swarms of colloidal particles electrophoretically driven in nematic liquid crystals
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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.
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HERNÁNDEZ NAVARRO, Sergi, et al. Reconfigurable swarms of colloidal particles electrophoretically driven in nematic liquid crystals. Molecular Crystals and Liquid Crystals. 2015. Vol. 610, num. 163-172. ISSN 1542-1406. [consulted: 10 of October of 2026]. Available at: https://hdl.handle.net/2445/67059