Carbon nanotube dispersed liquid crystal: A nano electromechanical system

被引:99
作者
Basu, Rajratan [1 ]
Iannacchione, Germano S. [1 ]
机构
[1] Worcester Polytech Inst, Order Disorder Phenomena Lab, Dept Phys, Worcester, MA 01609 USA
关键词
carbon nanotubes; composite materials; microswitches; nanotechnology; nematic liquid crystals;
D O I
10.1063/1.3005590
中图分类号
O59 [应用物理学];
学科分类号
摘要
Electric field induced director orientation of a nematic liquid crystal (LC)+carbon nanotube (CNT) system reveals insights on switching behavior for this anisotropic composite. Once the field goes off, the LC+CNT system relaxes back to the original orientation through a mechanical rotation, revealing the intrinsic dynamics. LC molecules and CNTs cooperatively form local pseudonematic domains in the isotropic phase due to strong LC-CNT interactions. These field-responsive anisotropic domains do not relax back to the original orientation on switching of the field off, which could find potential applications in memory devices.
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页数:3
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