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Electronic Functions in Liquid-Crystalline Nanostructures with High Polarization

Published online by Cambridge University Press:  24 May 2019

Masahiro Funahashi
Masahiro Funahashi*
Affiliation:
Program of Advanced Materials Science, Faculty of Engineering and Design, Kagawa University, 2217-20 Hayashi-cho, Takamatsu, Kagawa761-0396, JapanHealth Research Institute, National Institute of Advanced Industrial Science and Technology, 2217-14 Hayashi-cho, Takamatsu, Kagawa761-0395, Japan
*
*(Email: m-funa@eng.kagawa-u.ac.jp)
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Abstract

Multifunctionality was created by coupling an electronic charge carrier transport with ionic conductivity or ferroelectricity in polarized liquid crystal phases. Liquid-crystalline perylene bisimide derivatives bearing cyclotetrasiloxane rings and triethylene oxide chains formed nanosegregated columnar structures which could conduct ions as well as electrons. The spin-coated thin films could be insolubilized by the exposure on acid vapors and display electrochromism. Phenylterthiophene derivatives bearing a chiral alkyl side chain exhibited a ferroelectric phase, in which a photovoltaic effect was caused by the interaction between photogenerated charge carriers with the internal electric field formed by the spontaneous polarization of the ferroelectric phase.

Keywords

electronic materialferroelectricityionic conductorliquid crystalin situ

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Type
Articles
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MRS Advances , Volume 4 , Issue 31-32: Electronics and Photonics , 2019, pp. 1733 - 1740
Copyright
Copyright © Materials Research Society 2019 

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