title: Simple and efficient chiral dopants to induce blue phases and their optical purity effects on the physical properties of blue phases.
abstract: Blue phases (BPs) have received considerable attention as light shutters in the next generation of liquid crystal (LC) displays. However, no simple and efficient chiral dopant for induction of BPs of commercially available rodlike LC compounds has been reported. In this study, both (R) and (S) forms of novel chiral dopants were synthesized, showed extremely high helical twisting power values in nematic LC compounds, and induced stable BPs with a small amount of our chiral dopants (3-5 mol %). In enantiomeric excess controlled experiments, we found novel phenomena in their physical properties, such as generation of a metastable chiral nematic phase between an isotropic state and a BP.
authors.affiliation: Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University , 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan.
authors.forename: Keiki
authors.initials: K
authors.lastname: Kishikawa
authors.forename: Takaaki
authors.initials: T
authors.lastname: Sugiyama
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Watanabe
authors.forename: Shota
authors.initials: S
authors.lastname: Aoyagi
authors.forename: Michinari
authors.initials: M
authors.lastname: Kohri
authors.forename: Tatsuo
authors.initials: T
authors.lastname: Taniguchi
authors.forename: Masahiro
authors.initials: M
authors.lastname: Takahashi
authors.forename: Shigeo
authors.initials: S
authors.lastname: Kohmoto