Bias dependent relaxation in different phases of an orthoconic antiferroelectric liquid crystal mixture (W-182)

P. Nayek; S. Ghosh; S. Kundu; T. Pal Majumder; S. K. Roy; N. Bennis; J. M. Otón; R. Dabrowski

doi:10.1016/j.cap.2009.08.016

Bias dependent relaxation in different phases of an orthoconic antiferroelectric liquid crystal mixture (W-182)

P. Nayek, S. Ghosh, S. Kundu, T. Pal Majumder, S. K. Roy, N. Bennis, J. M. Otón, R. Dabrowski

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

6 Scopus citations

Abstract

The electro-optical behavior of the orthoconic antiferroelectric liquid crystal mixture W-182 has been studied. Surface-stabilized, low thickness cells of this mixture give a perfect double hysteresis loop with 1 Hz triangular signal, reaching different transmission levels for different voltages amplitudes. These levels can be stabilized with a single holding voltage, making it possible for the material to be passively multiplexed at video rate. With the application of bias field at three different temperatures, we have observed the field-induced Fréedericksz transition from SmI_A ^*-SmC_A ^*, antiferroelectric to ferroelectric, and ferroelectric to paraelectric transition. Such Fréedericksz transition point is decreased with the increase of temperature.

Original language	English
Pages (from-to)	631-635
Number of pages	5
Journal	Current Applied Physics
Volume	10
Issue number	2
DOIs	https://doi.org/10.1016/j.cap.2009.08.016
State	Published - 1 Jan 2010
Externally published	Yes

Keywords

Dielectrics
Ferroelectrics
Optical materials and properties

ASJC Scopus subject areas

General Materials Science
General Physics and Astronomy

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10.1016/j.cap.2009.08.016

Cite this

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title = "Bias dependent relaxation in different phases of an orthoconic antiferroelectric liquid crystal mixture (W-182)",

abstract = "The electro-optical behavior of the orthoconic antiferroelectric liquid crystal mixture W-182 has been studied. Surface-stabilized, low thickness cells of this mixture give a perfect double hysteresis loop with 1 Hz triangular signal, reaching different transmission levels for different voltages amplitudes. These levels can be stabilized with a single holding voltage, making it possible for the material to be passively multiplexed at video rate. With the application of bias field at three different temperatures, we have observed the field-induced Fr{\'e}edericksz transition from SmIA *-SmCA *, antiferroelectric to ferroelectric, and ferroelectric to paraelectric transition. Such Fr{\'e}edericksz transition point is decreased with the increase of temperature.",

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T1 - Bias dependent relaxation in different phases of an orthoconic antiferroelectric liquid crystal mixture (W-182)

AU - Nayek, P.

AU - Ghosh, S.

AU - Kundu, S.

AU - Majumder, T. Pal

AU - Roy, S. K.

AU - Bennis, N.

AU - Otón, J. M.

AU - Dabrowski, R.

PY - 2010/1/1

Y1 - 2010/1/1

N2 - The electro-optical behavior of the orthoconic antiferroelectric liquid crystal mixture W-182 has been studied. Surface-stabilized, low thickness cells of this mixture give a perfect double hysteresis loop with 1 Hz triangular signal, reaching different transmission levels for different voltages amplitudes. These levels can be stabilized with a single holding voltage, making it possible for the material to be passively multiplexed at video rate. With the application of bias field at three different temperatures, we have observed the field-induced Fréedericksz transition from SmIA *-SmCA *, antiferroelectric to ferroelectric, and ferroelectric to paraelectric transition. Such Fréedericksz transition point is decreased with the increase of temperature.

AB - The electro-optical behavior of the orthoconic antiferroelectric liquid crystal mixture W-182 has been studied. Surface-stabilized, low thickness cells of this mixture give a perfect double hysteresis loop with 1 Hz triangular signal, reaching different transmission levels for different voltages amplitudes. These levels can be stabilized with a single holding voltage, making it possible for the material to be passively multiplexed at video rate. With the application of bias field at three different temperatures, we have observed the field-induced Fréedericksz transition from SmIA *-SmCA *, antiferroelectric to ferroelectric, and ferroelectric to paraelectric transition. Such Fréedericksz transition point is decreased with the increase of temperature.

KW - Dielectrics

KW - Ferroelectrics

KW - Optical materials and properties

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DO - 10.1016/j.cap.2009.08.016

M3 - Article

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SN - 1567-1739

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JO - Current Applied Physics

JF - Current Applied Physics

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ER -

Bias dependent relaxation in different phases of an orthoconic antiferroelectric liquid crystal mixture (W-182)

Abstract

Keywords

ASJC Scopus subject areas

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