Jeffrey Christopher Everts (Avtor), Miha Ravnik (Avtor)

Povzetek

We investigate the effects of electric double layers and flexoelectricity on the surface anchoring in general nematic fluids. Within a simplified model, we demonstrate for a nematic electrolyte how the surface anchoring strength can be affected by the surface charge, bulk ion concentration and/or flexoelectricity, effectively changing not only the magnitude of the anchoring but also the anchoring type, such as from planar to tilted. In particular, we envisage possible tuning of the anchoring strength by the salt concentration in the regime where sufficiently strong electrostatic anchoring, as controlled by the (screened) surface charge, can compete with the non-electrostatic anchoring. This effect is driven by the competing energetic-torque couplings between nematic director and the emergent electrostatic potential, due to surface charge, ions and flexoelectricity. Our findings propose a way of influencing surface anchoring by using electrostatic effects, which could be used in various aspects, including in the self-assembly of colloidal particles in nematic fluids, optical and display patterns, and sensing.

Ključne besede

nematske tekočine;elektrostatika;električna dvojna plast;fleksoelektričnost;površinsko sidranje;nematic fluids;electrostatics;electric double layer;flexoelectricity;surface anchoring;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FMF - Fakulteta za matematiko in fiziko
UDK: 544.6/.7
COBISS: 21920003 Povezava se bo odprla v novem oknu
ISSN: 0267-8292
Št. ogledov: 482
Št. prenosov: 145
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: nematske tekočine;elektrostatika;električna dvojna plast;fleksoelektričnost;površinsko sidranje;
Konec prepovedi (OpenAIRE): 2021-07-07
Strani: str. 423-435
Letnik: ǂVol. ǂ48
Zvezek: ǂiss. ǂ3
Čas izdaje: 2021
DOI: 10.1080/02678292.2020.1786176
ID: 11890309