Bistable Nematic Liquid Crystals with Self-Assembled Fibers


  • Partial financial support from Grants-in-Aid for Scientific Research in the Priority Area of “Dynamic Control of Strongly Correlated Soft Materials” (No. 413/13031009), and from the 21st Century COE Program for Frontiers in Fundamental Chemistry from the Ministry of Education, Culture, Sports, Science and Technology are gratefully acknowledged. N. M. is thankful for financial support from research fellowships of the Japan Society for the Promotion of Science (JSPS) for Young Scientists. Supporting Information is available online from Wiley InterScience or from the author.


original image

Memorization of the alignment of nematic liquid crystals in electric fields is achieved by incorporating small amounts of self-assembled fibers into the liquid crystals. Hydrogen-bonded fibers formed in electrically aligned nematic phases direct liquid-crystal alignment after removal of the electric fields (see Figure and cover). Rewritable bistable nematics of light-scattering and transparent states have been achieved by a combination of thermal and electric stimuli.