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

Melissa Infusino; Antonio De Luca; Federica Ciuchi; Andrei Ionescu; Nicola Scaramuzza; Giuseppe Strangi

doi:10.1007/s10853-013-7868-6

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

Melissa Infusino^*
, Antonio De Luca
, Federica Ciuchi
, Andrei Ionescu
, Nicola Scaramuzza
, Giuseppe Strangi

^*Corresponding author for this work

University of Calabria
University of Bucharest
Case Western Reserve University

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

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.

Original language	English
Pages (from-to)	1805-1811
Number of pages	7
Journal	Journal of Materials Science
Volume	49
Issue number	4
DOIs	https://doi.org/10.1007/s10853-013-7868-6
State	Published - Feb 2014
Externally published	Yes

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title = "Optical and electrical characterization of a gold nanoparticle dispersion in a chiral liquid crystal matrix",

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.",

author = "Melissa Infusino and \{De Luca\}, Antonio and Federica Ciuchi and Andrei Ionescu and Nicola Scaramuzza and Giuseppe Strangi",

note = "Funding Information: Acknowledgements The research leading to these results has received funding from the European Unions Seventh Framework Programme ([FP7/2008]) Metachem Project under Grant agreement No [228762].",

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T1 - Optical and electrical characterization of a gold nanoparticle dispersion in a chiral liquid crystal matrix

AU - Infusino, Melissa

AU - De Luca, Antonio

AU - Ciuchi, Federica

AU - Ionescu, Andrei

AU - Scaramuzza, Nicola

AU - Strangi, Giuseppe

N1 - Funding Information: Acknowledgements The research leading to these results has received funding from the European Unions Seventh Framework Programme ([FP7/2008]) Metachem Project under Grant agreement No [228762].

PY - 2014/2

Y1 - 2014/2

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/84891603865

U2 - 10.1007/s10853-013-7868-6

DO - 10.1007/s10853-013-7868-6

M3 - Artículo

AN - SCOPUS:84891603865

SN - 0022-2461

VL - 49

SP - 1805

EP - 1811

JO - Journal of Materials Science

JF - Journal of Materials Science

IS - 4

ER -

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

Abstract

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