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

We report measurements of the bulk flexoelectric coefficient (e 1 − e 3) 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 °...

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Bibliographic Details
Published in:AIP advances 2012-06, Vol.2 (2), p.022137-022137-10
Main Authors: Castles, F., Green, S. C., Gardiner, D. J., Morris, S. M., Coles, H. J.
Format: Article
Language:English
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Summary:We report measurements of the bulk flexoelectric coefficient (e 1 − e 3) 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, (e 1 − e 3) = 7.10 pC/m with a combined standard uncertainty of 0.14 pC/m.
ISSN:2158-3226
2158-3226
DOI:10.1063/1.4723681