Compatibilization of a Photochromic Dithienylethene Dopant and Ferroelectric Liquid-Crystal Host via Siloxane Nanosegregation


  • We are grateful to the Natural Sciences and Engineering Research Council of Canada, to the Canada Foundation for Innovation, and to the Ontario Challenge Fund for support of this work.


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Compatibilization of a photochromic dibenzothienylperfluorocyclopentene dopant (Figure) and a ferroelectric SmC* liquid-crystal host is achieved if both host and dopant are terminated with trisiloxane oligomers, which results in nanosegregation. Photocyclization of the photochromic dopant causes a large modulation of the electric polarization via a photomechanical effect.