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Flexo-Ionic Effect of Ionic Liquid Crystal Elastomers

The first study of the flexo-ionic effect, i.e., mechanical deformation-induced electric signal, of the recently discovered ionic liquid crystal elastomers (iLCEs) is reported. The measured flexo-ionic coefficients were found to strongly depend on the director alignment of the iLCE films and can be...

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Autores principales: Rajapaksha, C. P. Hemantha, Gunathilaka, M. D. Tharindupriya, Narute, Suresh, Albehaijan, Hamad, Piedrahita, Camilo, Paudel, Pushpa, Feng, Chenrun, Lüssem, Björn, Kyu, Thein, Jákli, Antal
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8304522/
https://www.ncbi.nlm.nih.gov/pubmed/34299509
http://dx.doi.org/10.3390/molecules26144234
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author Rajapaksha, C. P. Hemantha
Gunathilaka, M. D. Tharindupriya
Narute, Suresh
Albehaijan, Hamad
Piedrahita, Camilo
Paudel, Pushpa
Feng, Chenrun
Lüssem, Björn
Kyu, Thein
Jákli, Antal
author_facet Rajapaksha, C. P. Hemantha
Gunathilaka, M. D. Tharindupriya
Narute, Suresh
Albehaijan, Hamad
Piedrahita, Camilo
Paudel, Pushpa
Feng, Chenrun
Lüssem, Björn
Kyu, Thein
Jákli, Antal
author_sort Rajapaksha, C. P. Hemantha
collection PubMed
description The first study of the flexo-ionic effect, i.e., mechanical deformation-induced electric signal, of the recently discovered ionic liquid crystal elastomers (iLCEs) is reported. The measured flexo-ionic coefficients were found to strongly depend on the director alignment of the iLCE films and can be over 200 µC/m. This value is orders of magnitude higher than the flexo-electric coefficient found in insulating liquid crystals and is comparable to the well-developed ionic polymers (iEAPs). The shortest response times, i.e., the largest bandwidth of the flexo-ionic responses, is achieved in planar alignment, when the director is uniformly parallel to the substrates. These results render high potential for iLCE-based devices for applications in sensors and wearable micropower generators.
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spelling pubmed-83045222021-07-25 Flexo-Ionic Effect of Ionic Liquid Crystal Elastomers Rajapaksha, C. P. Hemantha Gunathilaka, M. D. Tharindupriya Narute, Suresh Albehaijan, Hamad Piedrahita, Camilo Paudel, Pushpa Feng, Chenrun Lüssem, Björn Kyu, Thein Jákli, Antal Molecules Article The first study of the flexo-ionic effect, i.e., mechanical deformation-induced electric signal, of the recently discovered ionic liquid crystal elastomers (iLCEs) is reported. The measured flexo-ionic coefficients were found to strongly depend on the director alignment of the iLCE films and can be over 200 µC/m. This value is orders of magnitude higher than the flexo-electric coefficient found in insulating liquid crystals and is comparable to the well-developed ionic polymers (iEAPs). The shortest response times, i.e., the largest bandwidth of the flexo-ionic responses, is achieved in planar alignment, when the director is uniformly parallel to the substrates. These results render high potential for iLCE-based devices for applications in sensors and wearable micropower generators. MDPI 2021-07-12 /pmc/articles/PMC8304522/ /pubmed/34299509 http://dx.doi.org/10.3390/molecules26144234 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Rajapaksha, C. P. Hemantha
Gunathilaka, M. D. Tharindupriya
Narute, Suresh
Albehaijan, Hamad
Piedrahita, Camilo
Paudel, Pushpa
Feng, Chenrun
Lüssem, Björn
Kyu, Thein
Jákli, Antal
Flexo-Ionic Effect of Ionic Liquid Crystal Elastomers
title Flexo-Ionic Effect of Ionic Liquid Crystal Elastomers
title_full Flexo-Ionic Effect of Ionic Liquid Crystal Elastomers
title_fullStr Flexo-Ionic Effect of Ionic Liquid Crystal Elastomers
title_full_unstemmed Flexo-Ionic Effect of Ionic Liquid Crystal Elastomers
title_short Flexo-Ionic Effect of Ionic Liquid Crystal Elastomers
title_sort flexo-ionic effect of ionic liquid crystal elastomers
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8304522/
https://www.ncbi.nlm.nih.gov/pubmed/34299509
http://dx.doi.org/10.3390/molecules26144234
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