Low frequency dielectric relaxations of gold nanoparticles/ferroelectric liquid crystal composites
IR@NPL: CSIR-National Physical Laboratory, New Delhi
View Archive Info| Field | Value | |
| Title |
Low frequency dielectric relaxations of gold nanoparticles/ferroelectric liquid crystal composites
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| Creator |
Joshi, T.
Kumar, A. Prakash, J. Biradar, A. M. |
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| Subject |
Crystallography
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| Description |
We present the characterisation and dielectric relaxation spectroscopy of a ferroelectric liquid crystal (FLC),
namely KCFLC 7S. It was observed that the studied FLC material possesses the tendency of homeotropic alignment
on glass substrates coated with indium tin oxide. A low frequency dielectric mode, along with the Goldstone
mode, was observed in the SmC∗ phase of the FLC material. The low frequency mode became more dominant
on doping gold nanoparticles into the FLC material. The occurrence of the low frequency mode was attributed
to the ionisation–recombination-assisted diffusion of slow ions present in the FLC material. The behaviour of the
relaxation frequency of the low frequency mode with applied dc bias and temperature was also demonstrated.
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| Publisher |
Taylor & Francis
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| Date |
2010-11
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://npl.csircentral.net/223/1/188.pdf
Joshi, T. and Kumar, A. and Prakash, J. and Biradar, A. M. (2010) Low frequency dielectric relaxations of gold nanoparticles/ferroelectric liquid crystal composites. Liquid Crystals , 37 (11). pp. 1433-1438. ISSN 0267-8292 |
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| Relation |
http://dx.doi.org/10.1080/02678292.2010.520747
http://npl.csircentral.net/223/ |
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