Effects of pulsed electric fields on a nematic device with a ferroelectric ceramic substrate

SS Roy; HF Gleeson; RW Whatmore; CP Shaw; Q Zhang

Effects of pulsed electric fields on a nematic device with a ferroelectric ceramic substrate

SS Roy, HF Gleeson, RW Whatmore, CP Shaw, Q Zhang

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

Abstract

We report details of the interaction between a thin film of ferroelectric ceramic (lead zirconate-lead titanate) and an overlying layer of nematic liquid crystal. Pulsed electric fields of 1ms duration and of varying amplitudes and polarity have been used to achieve different degrees of poling within devices in which one substrate includes the ferroelectric ceramic layer. The degree of orientation of the nematic liquid crystal is found to depend on both the amplitude and polarity of the poling voltage employed. The magnitude of the poling voltage necessary to induce reorientation in the liquid crystal compares reasonably with the calculated value. The reorientation of the nematic liquid crystal due to the interaction with poled grains of PZT is stable for at least several months.

Original language	English
Pages (from-to)	3777-3783
Journal	Molecular Crystals and Liquid Crystals
Volume	368
Publication status	Published - 2001

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title = "Effects of pulsed electric fields on a nematic device with a ferroelectric ceramic substrate",

abstract = "We report details of the interaction between a thin film of ferroelectric ceramic (lead zirconate-lead titanate) and an overlying layer of nematic liquid crystal. Pulsed electric fields of 1ms duration and of varying amplitudes and polarity have been used to achieve different degrees of poling within devices in which one substrate includes the ferroelectric ceramic layer. The degree of orientation of the nematic liquid crystal is found to depend on both the amplitude and polarity of the poling voltage employed. The magnitude of the poling voltage necessary to induce reorientation in the liquid crystal compares reasonably with the calculated value. The reorientation of the nematic liquid crystal due to the interaction with poled grains of PZT is stable for at least several months.",

author = "SS Roy and HF Gleeson and RW Whatmore and CP Shaw and Q Zhang",

note = "18th International Liquid Crystal Conference (ILCC2000), SENDAI, JAPAN, JUL 24-28, 2000",

year = "2001",

language = "English",

volume = "368",

pages = "3777--3783",

journal = "Molecular Crystals and Liquid Crystals",

issn = "1542-1406",

publisher = "Taylor & Francis",

}

TY - JOUR

T1 - Effects of pulsed electric fields on a nematic device with a ferroelectric ceramic substrate

AU - Roy, SS

AU - Gleeson, HF

AU - Whatmore, RW

AU - Shaw, CP

AU - Zhang, Q

N1 - 18th International Liquid Crystal Conference (ILCC2000), SENDAI, JAPAN, JUL 24-28, 2000

PY - 2001

Y1 - 2001

N2 - We report details of the interaction between a thin film of ferroelectric ceramic (lead zirconate-lead titanate) and an overlying layer of nematic liquid crystal. Pulsed electric fields of 1ms duration and of varying amplitudes and polarity have been used to achieve different degrees of poling within devices in which one substrate includes the ferroelectric ceramic layer. The degree of orientation of the nematic liquid crystal is found to depend on both the amplitude and polarity of the poling voltage employed. The magnitude of the poling voltage necessary to induce reorientation in the liquid crystal compares reasonably with the calculated value. The reorientation of the nematic liquid crystal due to the interaction with poled grains of PZT is stable for at least several months.

AB - We report details of the interaction between a thin film of ferroelectric ceramic (lead zirconate-lead titanate) and an overlying layer of nematic liquid crystal. Pulsed electric fields of 1ms duration and of varying amplitudes and polarity have been used to achieve different degrees of poling within devices in which one substrate includes the ferroelectric ceramic layer. The degree of orientation of the nematic liquid crystal is found to depend on both the amplitude and polarity of the poling voltage employed. The magnitude of the poling voltage necessary to induce reorientation in the liquid crystal compares reasonably with the calculated value. The reorientation of the nematic liquid crystal due to the interaction with poled grains of PZT is stable for at least several months.

M3 - Article

VL - 368

SP - 3777

EP - 3783

JO - Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals

SN - 1542-1406

ER -