In order to study the effect of mixing dye in ferroelectric liquid crystal (FLC) materials, the phase transition temperature and electro-optical properties of azo dye doped FLC samples have been investigated. All the properties have been found to be changed drastically. The results have revealed that not only the SmC*-SmA* transition temperature decreased markedly by the addition of azo-dye, but also dye-doped FLC had lower threshold voltage and saturation voltage than the pure FLC.
© 2008 Chinese Optics Letters
Yayun Feng and Zhihua Ling, "Effect of dichroic azo-dye doped on ferroelectric liquid crystals," Chin. Opt. Lett. 6, 858-860 (2008)