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

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

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    1 Citation (Scopus)

    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.
    LanguageEnglish
    Pages3777-3783
    JournalMolecular Crystals and Liquid Crystals
    Volume368
    Publication statusPublished - 2001

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    liquid crystals
    ceramics
    electric fields
    retraining
    polarity
    electric potential
    interactions
    thin films

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    Roy, SS., Gleeson, HF., Whatmore, RW., Shaw, CP., & Zhang, Q. (2001). Effects of pulsed electric fields on a nematic device with a ferroelectric ceramic substrate. Molecular Crystals and Liquid Crystals, 368, 3777-3783.
    Roy, SS ; Gleeson, HF ; Whatmore, RW ; Shaw, CP ; Zhang, Q. / Effects of pulsed electric fields on a nematic device with a ferroelectric ceramic substrate. In: Molecular Crystals and Liquid Crystals. 2001 ; Vol. 368. pp. 3777-3783.
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    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",
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    Roy, SS, Gleeson, HF, Whatmore, RW, Shaw, CP & Zhang, Q 2001, 'Effects of pulsed electric fields on a nematic device with a ferroelectric ceramic substrate', Molecular Crystals and Liquid Crystals, vol. 368, pp. 3777-3783.

    Effects of pulsed electric fields on a nematic device with a ferroelectric ceramic substrate. / Roy, SS; Gleeson, HF; Whatmore, RW; Shaw, CP; Zhang, Q.

    In: Molecular Crystals and Liquid Crystals, Vol. 368, 2001, p. 3777-3783.

    Research output: Contribution to journal › Article

    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

    T2 - Molecular Crystals and Liquid Crystals

    JF - Molecular Crystals and Liquid Crystals

    SN - 1542-1406

    ER -

    Roy SS, Gleeson HF, Whatmore RW, Shaw CP, Zhang Q. Effects of pulsed electric fields on a nematic device with a ferroelectric ceramic substrate. Molecular Crystals and Liquid Crystals. 2001;368:3777-3783.