Flexoelectric coefficient measurements in the nematic liquid crystal phase of 5CB

F. Castles; S. C. Green; D. J. Gardiner; S. M. Morris; H. J. Coles

doi:10.1063/1.4723681

AIP Advances (Jun 2012)

Flexoelectric coefficient measurements in the nematic liquid crystal phase of 5CB

F. Castles,
S. C. Green,
D. J. Gardiner,
S. M. Morris,
H. J. Coles

Affiliations

F. Castles: Centre of Molecular Materials for Photonics and Electronics, Department of Engineering, University of Cambridge, 9 JJ Thomson Avenue, Cambridge CB3 0FA, United Kingdom
S. C. Green: MathWorks, Matrix House, Cambridge Business Park, Cambridge CB4 OHH, United Kingdom
D. J. Gardiner: Centre of Molecular Materials for Photonics and Electronics, Department of Engineering, University of Cambridge, 9 JJ Thomson Avenue, Cambridge CB3 0FA, United Kingdom
S. M. Morris: Centre of Molecular Materials for Photonics and Electronics, Department of Engineering, University of Cambridge, 9 JJ Thomson Avenue, Cambridge CB3 0FA, United Kingdom
H. J. Coles: Centre of Molecular Materials for Photonics and Electronics, Department of Engineering, University of Cambridge, 9 JJ Thomson Avenue, Cambridge CB3 0FA, United Kingdom

DOI: https://doi.org/10.1063/1.4723681
Journal volume & issue: Vol. 2, no. 2
pp. 022137 – 022137-10

Abstract

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We report measurements of the bulk flexoelectric coefficient (e1 − e3) of 5CB (4-Cyano-4′-pentylbiphenyl), in the temperature range 20–34 °C, with a relative combined standard uncertainty of 2 %. The chiral flexoelectro-optic method was used with 1 wt % high-twisting-power chiral additive. At 25 °C, (e1 − e3) = 7.10 pC/m with a combined standard uncertainty of 0.14 pC/m.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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