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Interaction of poled thin film ferroelectrics with nematic liquid crystals

  • John F. Hubbard
  • , Helen F. Gleeson
  • , Roger W. Whatmore
  • , Chris P. Shaw
  • , Qi Zhang
  • , Andrew J. Murray
  • University of Manchester
  • Cranfield University
  • Griffith University Queensland

Research output: Other outputpeer-review

Abstract

Nematic liquid crystals (NLCs) have been widely used to image the static and dynamic domain structure that occurs in poled ferroelectric crystals. The interaction mechanism is influenced by both the coupling of the ferroelectric polarization with the NLC and the effect on the surface anchoring of the NLC director due to the ferroelectric substrate. This paper reports the formation and observation of poled structures in thin film ferroelectric ceramic systems incorporated in a novel liquid crystal device architecture. Hybrid display devices combining thin film oxide ferroelectrics (OFEs) with NLCs are described. The OFEs are of the lead zirconate-lead titanate, Pb(Zr0.30Ti0.70)O3(PZT 30/70) system, are under 1 μm thick, transparent and are combined with commercially available NLCs. Visualization of poled domains within the OFE is demonstrated. The mechanism of coupling the polarization of the OFE with the orientation of the NLC is described and preliminary results are discussed.

Original languageEnglish
Number of pages8
Volume329
DOIs
Publication statusPublished - 1999

Publication series

NameMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
PublisherTaylor and Francis Ltd.
ISSN (Print)1058-725X

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