Polar Switching in a Lyotropic Columnar Nematic Liquid Crystal Made of Bowl-Shaped Molecules
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Veröffentlicht in: | Advanced materials (Deerfield Beach, Fla.). - 1998. - 27(2015), 29 vom: 05. Aug., Seite 4280-4 |
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1. Verfasser: | |
Weitere Verfasser: | , , , , , , |
Format: | Online-Aufsatz |
Sprache: | English |
Veröffentlicht: |
2015
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Zugriff auf das übergeordnete Werk: | Advanced materials (Deerfield Beach, Fla.) |
Schlagworte: | Journal Article columnar nematic mesophases ferroelectricity lyotropics second-harmonic generation subphthalocyanines |
Zusammenfassung: | © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. A polar response in a lyotropic columnar nematic material is reported. The material accommodates bowl-shaped molecules with strong axial dipole moments in column segments without head-to-tail invariance. Optical second-harmonic-generation methods confirm that the nematic columns align unidirectionally under an applied electric field and the material develops remnant macroscopic polarization observable for hours. The switching takes place by a flip of the columns |
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Beschreibung: | Date Completed 14.10.2015 Date Revised 30.09.2020 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
ISSN: | 1521-4095 |
DOI: | 10.1002/adma.201500238 |