Poly(N-vinylcarbazole) Film-Based Liquid Crystal Films

Andy Ying Guey Fuh, Yuan Di Chen, Ko Ting Cheng

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The electro-optical properties of poly(n-vinylcarbazole) (PVK) film-based liquid crystal (LC) films are reported. Firstly, the alignment direction of a rubbed PVK film is found to successfully switch toward the rubbing direction through thermal treatment. Second, a method of particular thermally induced phase separation (TIPS) of LCs and polymers is presented. The method involves a combination of dissolution process and TIPS. Additionally, a scattering-mode light shutter having the advantages of low driving voltage, polarization-independent scattering, fast response, high contrast ratio is reported. Finally, the scattering-mode light shutter with different transmission is achieved by illuminating the cell under various light intensities.

Original languageEnglish
Pages (from-to)135-151
Number of pages17
JournalMolecular Crystals and Liquid Crystals
Volume596
Issue number1
DOIs
StatePublished - 13 Jun 2014

Keywords

  • Liquid crystal
  • PVK
  • and scattering
  • azo dyes
  • phase separation

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