Sridevi, S. ; Prasad, S. Krishna ; Nair, Geetha G. ; D’Britto, Virginia ; Prasad, B. L. V. (2010) Enhancement of anisotropic conductivity, elastic and dielectric constants in a liquid crystal-gold nanorod system Applied Physics Letters, 97 (15). Article ID 151913. ISSN 0003-6951
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Official URL: http://aip.scitation.org/doi/abs/10.1063/1.3499744...
Related URL: http://dx.doi.org/10.1063/1.3499744
Abstract
We report electrical conductivity (σ), dielectric constant (ε) and the elastic constant measurements in a nematic liquid crystal (LC) doped with small concentrations of goldnanorods. This LC-nanoparticle complex, shows not only orders of magnitude higher σ, but also stabilizes its anisotropy. The ε data suggests an increased ordering in the nematic phase and an improved antiparallel correlation of the molecules in the isotropic phase. Surprisingly, an anisotropic enhancement of the Frank elasticity is also seen. We suggest a possible electro/magnetomechanical conductivity switch and also provide explanations based on the aspect ratio of the nanoparticles vis-a-vis the LC molecules.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| ID Code: | 105223 |
| Deposited On: | 01 Feb 2018 17:08 |
| Last Modified: | 01 Feb 2018 17:08 |
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