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Polar flexoelectric in-plane and out-of-plane switching in bent core nematic mixtures

Författare och institution:
Omaima Abubakr Elamain (Institutionen för fysik (GU)); G. Hegde (-); Lachezar Komitov (Institutionen för fysik (GU))
Publicerad i:
Japanese Journal of Applied Physics, 55 ( 7 )
ISSN:
0021-4922
Publikationstyp:
Artikel, refereegranskad vetenskaplig
Publiceringsår:
2016
Språk:
engelska
Fulltextlänk:
Sammanfattning (abstract):
Polar electro-optic response, arising from the coupling between an applied in-plane and out-of-plane dc electric field, respectively, and the flexoelectric polarization of bent core nematic liquid crystal mixtures with hybrid alignment is studied in conventional sandwich cells with homeotropic anchoring at one of the cell substrates and planar at the other. Such a hybrid alignment, however, results in a splay/bend elastic deformation of the nematic giving rise of a flexoelectric polarization. It was found that a pronounced polar electro-optic response, both in-plane and out of plane, took place in the bent core nematic mixtures at very low voltages due to the high flexoelectric polarization in these mixtures, compared with the one observed in calamitic liquid crystals.
Ämne (baseras på Högskoleverkets indelning av forskningsämnen):
NATURVETENSKAP ->
Fysik
Nyckelord:
liquid-crystals, Physics
Postens nummer:
239830
Posten skapad:
2016-08-05 11:19

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