Orientation control over bent-core smectic liquid crystal phases |
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| Authors: | Hanim Kim Yun Ho Kim Sunhee Lee David M. Walba Noel A. Clark Sang Bok Lee |
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| Affiliation: | 1. Graduate School of Nanoscience and Technology (WCU), KAIST, Daejeon, Republic of Korea;2. Advanced Functional Materials Research Group, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea;3. Department of Chemistry and Liquid Crystal Materials Research Center, University of Colorado, Boulder, CO, USA;4. Department of Physics and Liquid Crystal Materials Research Center, University of Colorado, Boulder, CO, USA;5. Department of Chemistry and Biochemistry, University of Maryland, College Park, MD, USA |
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| Abstract: | Bent-core smectic liquid crystal (LC) phases (B phases) have been widely studied since their unusual polar and chiral properties were discovered in the 1990s. Relatively few studies have examined the mechanisms by which the orientation of the B phase may be controlled to produce the type of macroscopic domain that is essential for organic semiconductor, optical device and patterning applications. This review is intended to cover recent progress towards controlling the B phases upon layering, including anisotropic treatment methods and topographical confinement methods. Finally, this review closes with a discussion of B smectic phases that have been fabricated for use in certain applications. |
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| Keywords: | bent-core molecules liquid crystal phases orientation control external fields topographic confinement |
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