Mechanism of homeotropic alignment of ferroelectric liquid crystals doped with ferro-fluid and applications

Tilak Joshi; Shri Singh; Amit Choudhary; R. P. Pant; A. M. Biradar

doi:10.1063/1.4816083

Mechanism of homeotropic alignment of ferroelectric liquid crystals doped with ferro-fluid and applications

Tilak Joshi, Shri Singh, Amit Choudhary, R. P. Pant, A. M. Biradar

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

We report homeotropic (HT) alignment of ferroelectric liquid crystal (FLC) doped with various concentrations of ferro-fluid (FF) without using any type of alignment layer. The FF induced HT alignment of FLC was found to be dependent on the doping concentration as revealed by optical micrographs, contact angle, and dielectric spectroscopy studies. Higher water contact angle of FF doped FLC films with respect to pure FLC film suggests higher surface energy of FF doped FLC than the surface energy of substrate. The physico-chemical mechanism together with steric model successfully explains the HT alignment of the studied FLC on the ITO substrate.

Original language	English
Article number	034110
Journal	Applied Physics Letters
Volume	103
Issue number	3
DOIs	https://doi.org/10.1063/1.4816083
Publication status	Published - 15 Jul 2013
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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abstract = "We report homeotropic (HT) alignment of ferroelectric liquid crystal (FLC) doped with various concentrations of ferro-fluid (FF) without using any type of alignment layer. The FF induced HT alignment of FLC was found to be dependent on the doping concentration as revealed by optical micrographs, contact angle, and dielectric spectroscopy studies. Higher water contact angle of FF doped FLC films with respect to pure FLC film suggests higher surface energy of FF doped FLC than the surface energy of substrate. The physico-chemical mechanism together with steric model successfully explains the HT alignment of the studied FLC on the ITO substrate.",

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AU - Joshi, Tilak

AU - Singh, Shri

AU - Choudhary, Amit

AU - Pant, R. P.

AU - Biradar, A. M.

PY - 2013/7/15

Y1 - 2013/7/15

N2 - We report homeotropic (HT) alignment of ferroelectric liquid crystal (FLC) doped with various concentrations of ferro-fluid (FF) without using any type of alignment layer. The FF induced HT alignment of FLC was found to be dependent on the doping concentration as revealed by optical micrographs, contact angle, and dielectric spectroscopy studies. Higher water contact angle of FF doped FLC films with respect to pure FLC film suggests higher surface energy of FF doped FLC than the surface energy of substrate. The physico-chemical mechanism together with steric model successfully explains the HT alignment of the studied FLC on the ITO substrate.

AB - We report homeotropic (HT) alignment of ferroelectric liquid crystal (FLC) doped with various concentrations of ferro-fluid (FF) without using any type of alignment layer. The FF induced HT alignment of FLC was found to be dependent on the doping concentration as revealed by optical micrographs, contact angle, and dielectric spectroscopy studies. Higher water contact angle of FF doped FLC films with respect to pure FLC film suggests higher surface energy of FF doped FLC than the surface energy of substrate. The physico-chemical mechanism together with steric model successfully explains the HT alignment of the studied FLC on the ITO substrate.

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JO - Applied Physics Letters

JF - Applied Physics Letters

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ER -

Mechanism of homeotropic alignment of ferroelectric liquid crystals doped with ferro-fluid and applications

Abstract

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