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

被引：4

作者：

Petrov, A. G. ^{[1
]}

Marinov, Y. G. ^{[1
]}

Hinov, H. P. ^{[1
]}

Todorova, L. ^{[1
]}

Dencheva-Zarkova, M. ^{[1
]}

Sridevi, S. ^{[2
]}

Rafailov, P. M. ^{[1
]}

Dettlaff-Weglikowska, U. ^{[3
]}

机构：

[1] Bulgarian Acad Sci, Georgi Nadjakov Inst Solid State Phys, Sofia, Bulgaria

[2] Ctr Soft Matter Res, Bangalore, Karnataka, India

[3] Korea Univ, Seoul, South Korea

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2011年 / 545卷

关键词：

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

D O I：

10.1080/15421406.2011.571975

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：1282 / 1290

页数：9

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