Optical and electrical characterization of a gold nanoparticle dispersion in a chiral liquid crystal matrix
Source abstract
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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Research context
OpenAlex topics: Liquid Crystal Research Advancements · Molecular spectroscopy and chirality · Spectroscopy and Quantum Chemical Studies
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