Polymer stabilization of electrohydrodynamic instability in non-iridescent cholesteric thin films

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A non-iridescent cholesterol liquid crystal (CLC) thin film is demonstrated by using the polymer-stabilized electrohydrodymanic (PSEHD) method. The photopolymerized cell made from a CLC/monomer mixture exhibits an optically stable gridlike pattern. The helical axis of thus-formed CLC is aligned with the hydrodynamic flow induced by a space charge motion, and the arrayed CLC grid configuration renders a wide viewing angle thanks to the limited color shift at various lines of sight. The formation of the PSEHD structure was verified with polarized optical microscopy, ascertaining that the electrohydrodymanic pattern can be photo-cured or stabilized. The PSEHD CLC is simple to fabricate and potentially suitable for applications in wide-viewing-angle or non-iridescent devices.

Original languageEnglish
Pages (from-to)22636-22642
Number of pages7
JournalOptics Express
Volume23
Issue number17
DOIs
Publication statusPublished - Aug 24 2015
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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