Observation of Flexoelectricity in a Mixture of Carbon Single Walled Nanotubes with a Nematic Liquid Crystal

Petrov, A. G.; Marinov, Y. G.; Hinov, H. P.; Todorova, L.; Dencheva-Zarkova, M.; Sridevi, S.; Rafailov, P. M.; Dettlaff-Weglikowska, U.

doi:10.1080/15421406.2011.571975

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Observation of Flexoelectricity in a Mixture of Carbon Single Walled Nanotubes with a Nematic Liquid Crystal

Petrov, A. G.;
Marinov, Y. G.;
Hinov, H. P.;
Todorova, L.;
Dencheva-Zarkova, M.;
외 3명

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초록

We have measured the modulus of the flexo-surface polarization term: 5.1 pC/m for the case of the nematic E7. The extension of the theory of Helfrich for the case of flexoelectric bending-splaying of a nematic layer permitted to measure also the modulus of the flexoelectric sum: 15 pC/m. The inclusion of minute amounts of single-walled carbon nanotubes (SWCNTs) with a concentration below 10(-3) wt. % changes the results obtained as follows: 14.7 pC/m and 78.7 pC/m, respectively. Additionally we have measured the value of the surface energy for the pure nematic E7 and the E7/SWCNTs mixture.

키워드

Flexoelectric bending; nematic E7; nematic-carbon nanotube interactions; ELECTRICITY; ROPES; CELL

제목: Observation of Flexoelectricity in a Mixture of Carbon Single Walled Nanotubes with a Nematic Liquid Crystal

저자: Petrov, A. G.; Marinov, Y. G.; Hinov, H. P.; Todorova, L.; Dencheva-Zarkova, M.; Sridevi, S.; Rafailov, P. M.; Dettlaff-Weglikowska, U.

DOI: 10.1080/15421406.2011.571975

발행일: 2011

유형: Article

저널명: Molecular Crystals and Liquid Crystals

권: 545

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