Skip to main content

Research Repository

Advanced Search

Flexoelectric behavior of bimesogenic liquid crystals in the nematic phase-observation of a new self-assembly pattern at the twist-bend nematic and the nematic interface

Balachandran, R.; Panov, V. P.; Panarin, Y. P.; Vij, J. K.; Tamba, M. G.; Mehl, G. H.; Song, J. K.

Authors

R. Balachandran

V. P. Panov

Y. P. Panarin

J. K. Vij

M. G. Tamba

J. K. Song



Abstract

Flexoelectric properties - the effective flexoelectric coefficient and flexoelectric polarization - are investigated for a bimesogenic liquid crystal CBC11CB with a twist bend nematic phase (Ntb). Results show that the effective flexoelectric coefficient is at least two times higher than that for bimesogens that do not exhibit the Ntb phase. The flexoelectric polarization for the Ntb phase is also two times greater than that in the nematic phase. In a temperature gradient cell, we observe surprisingly a new phenomenon, in the bimesogens CBC7CB and CBC9CB and their mixtures with 5CB, of periodic self-assembly in the N phase close to the N-Ntb phase transition temperature. This phenomenon is reminiscent of the self-deformation and spontaneous chirality that appear in the system.

Citation

Balachandran, R., Panov, V. P., Panarin, Y. P., Vij, J. K., Tamba, M. G., Mehl, G. H., & Song, J. K. (2014). Flexoelectric behavior of bimesogenic liquid crystals in the nematic phase-observation of a new self-assembly pattern at the twist-bend nematic and the nematic interface. Journal of Materials Chemistry C, 2(38), 8179-8184. https://doi.org/10.1039/c4tc01043d

Journal Article Type Article
Acceptance Date Jul 31, 2014
Online Publication Date Aug 1, 2014
Publication Date Oct 14, 2014
Deposit Date Dec 24, 2015
Publicly Available Date Mar 29, 2024
Journal Journal of materials chemistry C
Print ISSN 2050-7526
Electronic ISSN 2050-7534
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 2
Issue 38
Pages 8179-8184
DOI https://doi.org/10.1039/c4tc01043d
Keywords Flexoelectric behaviour
Public URL https://hull-repository.worktribe.com/output/383631
Publisher URL http://pubs.rsc.org/en/content/articlelanding/2014/tc/c4tc01043d#!divAbstract
Additional Information This is the accepted version of an article published in Journal of materials chemistry C, 2014, v.2 issue 38.

Files

Article.pdf (4.5 Mb)
PDF

Copyright Statement
© Royal Society of Chemistry 2016





You might also like



Downloadable Citations