Abstract
We report on the stability of the optical reorientation of doped nematic liquid crystals (LCs) with azo-dyes in polymer networks. The photo-reactive polymer networks formed within the doped LC medium play a critical role in achieving the stable optical reorientation of the LC originating from the trans-cis transformation of the dye molecules. Moreover, the photo-reactive polymer layer on the substrate surface is required to produce the surface memory effect of the dye-doped LC. The optically induced memory is well retained in the dye-doped LC only in the presence of the polymer network medium.
Original language | English |
---|---|
Pages (from-to) | 11/[281]-19/[289] |
Journal | Molecular Crystals and Liquid Crystals |
Volume | 422 |
DOIs | |
State | Published - 2004 |
Keywords
- Liquid crystals doped with azo-dyes
- Optical reorientation
- Polymer networks
- Surface memory effect