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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/7391
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dc.contributor.authorChoudhary, Keerti-
dc.contributor.authorGupta, R. K. Gupta-
dc.contributor.authorPratibha, R.-
dc.contributor.authorSadashiva, B.K.-
dc.contributor.authorManjuladevi, V.-
dc.date.accessioned2020-01-10T10:00:01Z-
dc.date.available2020-01-10T10:00:01Z-
dc.date.issued2019-10-
dc.identifier.citationLiquid Crystals, 2019, Vol.46, p1494–1504en_US
dc.identifier.issn0267-8292-
dc.identifier.issn1366-5855 (Online)-
dc.identifier.urihttp://hdl.handle.net/2289/7391-
dc.descriptionRestricted Accessen_US
dc.description.abstractThe properties of the thin films of liquid crystal (LC) molecules can be governed easily by external fields. The anisotropic structure of the LC molecules has a large impact on the electrical and optical properties of the film. The Langmuir monolayer (LM) of LC molecules at the air–water interface is known to exhibit a variety of surface phases which can be transferred onto a solid substrate using the Langmuir‒Blodgett (LB) technique. Here, we have studied the LM and LB films of asymmetrically substituted bent-core LC molecules. The morphology of LB film of the molecules is found to be a controlling parameter for aligning bulk LC in the nematic phase. It was found that the LB films of the bent-core molecules possessing defects favour the planar orientation of nematic LC, whereas the LB films with fewer defects show homeotropic alignment. The defect in LB films may introduce splay or bend distortions in the nematic near the alignment layer which can govern the planar alignment of the bulk LC. The uniform layer of LB film facilitates the molecules of nematic to anchor vertically due to a strong van der Waals interaction between the aliphatic chains leading to a homeotropic alignment.en_US
dc.language.isoenen_US
dc.publisherTaylor & Francisen_US
dc.relation.urihttps://doi.org/10.1080/02678292.2019.1574035en_US
dc.rights2019 Taylor & Francisen_US
dc.subjectLangmuir monolayeren_US
dc.subjectLangmuir‒-Blodgett film;en_US
dc.subjectBrewster angle microscopyen_US
dc.subjectatomic force microscopeen_US
dc.subjectfield emission scanning electron microscopeen_US
dc.subjectliquid crystalsen_US
dc.titleAlignment of liquid crystals using Langmuir‒Blodgett films of unsymmetrical bent-core liquid crystalsen_US
dc.typeArticleen_US
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