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Dielectric Nanowire Composites: One-Pot Synthesis of Gold Nanoparticles Encapsulated in Polyaniline Fibers

Published online by Cambridge University Press:  07 November 2013

Eliud K. Mushibe ,
Steven C. Murphy ,
Kate Raiti-Palazzolo ,
Danielle L Mccarthy ,
Emilly A. Obuya ,
Jasper Chiguma  and
Wayne E. Jones
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Abstract

Nanocomposites of gold nanoparticles (AuNPs) embedded in polyaniline fibers have been fabricated using a one-pot synthesis approach and in-situ polymerization. By using a combination of inorganic acids (e.g. HCl) and camphorsulfonic acid, polyaniline nanostructured fibers of high aspect ratio with diameters of 150 ± 50 nm and several micrometers in length were obtained. These fibers afforded high electrical conductivity of 4.2 ± 0.5 S/cm. Encapsulation of the AuNPs in the polyaniline fibers afforded nanocomposites with high electrical conductivity and dielectric constant of 34.0 ± 0.5 S/cm and 65.3 ± 5 respectively. The morphology of these materials was analyzed using SEM and HRTEM and electronic properties were analyzed using UV-Vis spectroscopy.

Keywords

compositedielectric propertieselectrical properties
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1453: Symposium GG – Functional Hybrid Nanoparticles and Capsules with Engineered Structures and Properties , 2012 , mrss12-1453-gg14-04
Copyright
Copyright © Materials Research Society 2013 

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