Cholesteric liquid crystal-carbon nanotube hybrid architectures for gas detection

Chin-Kai Chang, Shih-Wen Chiu, Hui-Lung Kuo, Kea-Tiong Tang
2012 Applied Physics Letters  
M. C. (2015) 'Alignment of liquid crystal/carbon nanotube dispersions for application in unconventional computing.', AIP conference proceedings., 1648 . p. 280009. Further information on publisher's website: The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that: • a full bibliographic reference is made to the original source • a link
more » ... s made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders. Please consult the full DRO policy for further details. Field controlled nematic-to-isotropic phase transition in liquid crystal-carbon nanotube composites Abstract. We demonstrate the manipulation of single-walled carbon nanotube/liquid crystal composites using in-plane electric fields. The conductivity of the materials is shown to be dependant on the application of a DC bias across the electrodes. When the materials are subjected to this in-plane field, it is suggested that the liquid crystals orientate, thereby forcing the SWCNTs to follow in alignment. This process occurs over many seconds, since the SWCNTs are significantly larger in size than the liquid crystals. The opportunity for applying this material to unconventional computing problems is suggested. FIGURE 1. (a) Blend of liquid crystal molecules present with in the commercially available E7 and (b) a single walled carbon nanotubes. The approximate dimensions are given to compare the scale of each material.
doi:10.1063/1.3679680 fatcat:coejx2x4ozebzlxbvz6w3m6hty