Bistable Ferroelectric Liquid Crystal Photoswitch Triggered by a Dithienylethene Dopant
- 13 June 2002
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 124 (27), 7898-7899
- https://doi.org/10.1021/ja025954z
Abstract
The spontaneous polarization (PS) of a ferroelectric liquid crystal is modulated reversibly by photocyclization of the dopant 1,2-bis[5‘-(4‘ ‘-heptyloxyphenyl)-2‘-methylthien-3‘-yl]perfluorocyclopentene. The magnitude of PS photomodulation increases with dopant concentration up to 3 mol %, and the resulting photoswitch is fatigue resistant and bistable. To the best of our knowledge, this is the first example of a bistable ferroelectric liquid crystal photoswitch to be reported in the literature.Keywords
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