Optical Transmission and Polarization Switching Properties of a Ferroelectric Liquid Crystal Cell With a Stable Twisted State

Maeda, Masaki; Mitsuru, Miyamori; Suzuki, Ikuo

doi:10.1080/10587250108024011

Molecular Crystals and Liquid Crystals Science and Technology.

2001

DOI: 10.1080/10587250108024011

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Optical Transmission and Polarization Switching Properties of a Ferroelectric Liquid Crystal Cell With a Stable Twisted State

Masaki Maeda

Miyamori Mitsuru

Ikuo Suzuki

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Cited by 8 publications

(1 citation statement)

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“…Figure 1 shows the optical micrographs of FLC sample cells with rubbed polyimide and conducting polymer surfaces respectively. As reflected from the figure, we observed the homogeneous alignment in both, i.e., in rubbed polyimide 18) and rubbed P3HT 19) surfaces of FLC. In both the cases, the homogeneous alignment was confirmed by change in the transmission as seen by the rotation of the cell under the crossed polarizers.…”

mentioning

confidence: 51%

Enhanced Memory Effect in Conducting Polymer Coated Surfaces of Ferroelectric Liquid Crystals

Malik

Prakash

Silotia

et al. 2009

Appl. Phys. Express

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The influence of conducting polymer, poly(3-hexylthiophene) (P3HT), on the memory behavior of ferroelectric liquid crystal material has been investigated by textural, electro-optical, and dielectric spectroscopic methods. It has been observed that the memory effect decreases as concentration of P3HT is increased. The good memory effect has been observed when $0:2% (w/v) of P3HT in chloroform solution was used. We also observed that the memory effect in deep Sm C Ã is not much pronounced but it increases as one goes to near Sm C Ã -Sm A transition temperature. The observed memory effect has been attributed to minimization of depolarization field and ionic charges.

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mentioning

confidence: 51%

Enhanced Memory Effect in Conducting Polymer Coated Surfaces of Ferroelectric Liquid Crystals

Malik

Prakash

Silotia

et al. 2009

Appl. Phys. Express

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The effect of rotational viscosity on the memory effect in ferroelectric liquid crystal

Kaur

Thakur

Chauhan

et al. 2004

Physica B: Condensed Matter

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A dielectric mode in electroclinic liquid crystals

Thakur

Choudhary

Kaur

et al. 2006

Journal of Applied Physics

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The dielectric properties of electroclinic and ferroelectric liquid crystal materials have been investigated in the frequency range of 100 Hz-10 MHz. A dielectric mode has been predicted in electroclinic liquid crystals near the transition temperature of Sm-C * -Sm-A phase. It has been observed that the investigated material has nonlayer shrinkage near the transition temperature of Sm-C * -Sm-A phase and shows anomalous behavior of dielectric spectra, tilt, and texture which is entirely different from the behavior of ferroelectric liquid crystals ͑FLCs͒. The dielectric relaxation frequency and tilt angle are almost constant with respect to temperature near the transition temperature under high bias field, which is characteristically different from FLCs. The high dielectric permittivity near T c owing to the presence of mode contribution leads to the fact that there is an intralayer phason variation few degrees before transition. The mode has been named random mode due to its origin from randomization of tilt near T c . Tilt randomization has been considered as an order parameter because in both the phases molecules are tilted but it is disordered in Sm-A phase making its intralayer polarization zero.

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Optical Transmission and Polarization Switching Properties of a Ferroelectric Liquid Crystal Cell With a Stable Twisted State

Cited by 8 publications

References 12 publications

Enhanced Memory Effect in Conducting Polymer Coated Surfaces of Ferroelectric Liquid Crystals

Enhanced Memory Effect in Conducting Polymer Coated Surfaces of Ferroelectric Liquid Crystals

The effect of rotational viscosity on the memory effect in ferroelectric liquid crystal

A dielectric mode in electroclinic liquid crystals

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