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Journal of Materials Science

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01-02-2014

Optical and electrical characterization of a gold nanoparticle dispersion in a chiral liquid crystal matrix

Authors: Melissa Infusino, Antonio De Luca, Federica Ciuchi, Andrei Ionescu, Nicola Scaramuzza, Giuseppe Strangi

Published in: Journal of Materials Science | Issue 4/2014

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Abstract

We report on the effect of gold nanoparticle (Au NP) dispersion in a chiral nematic liquid crystal (LC). Polarized optical microscopy and X-ray diffraction measurements evidence the insurgence of an order change in the LC host. Moreover, a comparative analysis based on dielectric and voltammetric spectroscopies performed on pure LC and on Au NP-doped LC shows that Au NP’s presence besides affecting LC order influences its electric properties: ion conductivity results importantly reduced, and beyond a threshold value of the applied field electrophoresis phenomena are induced.

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Title: Optical and electrical characterization of a gold nanoparticle dispersion in a chiral liquid crystal matrix
Authors: Melissa Infusino
Antonio De Luca
Federica Ciuchi
Andrei Ionescu
Nicola Scaramuzza
Giuseppe Strangi
Publication date: 01-02-2014
Publisher: Springer US
Published in: Journal of Materials Science / Issue 4/2014
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI: https://doi.org/10.1007/s10853-013-7868-6

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