High field conduction behavior of nanocomposite of low-density polyethylene and Ag nanoparticles | IEEE Conference Publication | IEEE Xplore

High field conduction behavior of nanocomposite of low-density polyethylene and Ag nanoparticles


Abstract:

High field conduction of the composite of nano Ag/low-density polyethylene (LDPE) and pure polyethylene is studied, as well as the effect of the contents of nano Ag on hi...Show More

Abstract:

High field conduction of the composite of nano Ag/low-density polyethylene (LDPE) and pure polyethylene is studied, as well as the effect of the contents of nano Ag on high field conduction. Schottky effect, Poole-Frenkel effect, space-charge-limited conduction (SCLC), and ion hopping conduction are used to fit the results. It is pointed out that both space-charge-limited conduction and Poole-Frenkel effect do not fit well for all of the samples. However, it is found that Schottky effect fits well for nano Ag/LDPE composites, and the ion hoping distance of the nanocomposite calculated from the experience data shows that ion hopping conduction fits for the composite of nano Ag/LDPE
Date of Conference: 07-11 September 2008
Date Added to IEEE Xplore: 31 October 2008
ISBN Information:
Conference Location: Yokkaichi, Japan
Citations are not available for this document.

INTRODUCTION

With a further study in polymeric nanocomposite, more and more attention has been paid to dielectric behavior and carrier transportation mechanism and it is shown by some research results that nano particles might improve dielectric properties to some extent [1]. With the study, some exciting news on polymer/nano metal particles has been reported due to it extraordinarily excellent dielectric properties. For example, permittivity could be enhanced via blending nano silver into polymer to increase energy density of a capacitor in an energy storage unit. Professor X. L. Cao has reported an abnormal dielectric behavior explained with Column blockade effect [2]. S. Radhakrishnan et al. found the conductivity of polypyrrole containing copper chloride follow the Poole-Frenkel effect [3]. P. Karanjal reported that the conductivity of polypropylene containing iodine could be explained with a three-dimensional Pooler-Frenkel effect [4]. Though some papers on dielectric behavior have been published, there is still lacking of adequate results on high field conduction in composites of polymer/nano metal particles. It is a common methodology to fit the curve of conductivity~ stress via a kind of mathematic formula. Then values of some parameters could be drawn from the fitted mathematic formula, such as relative dielectric constant could be deduced from Schottky effect, Poole-Frenkel effect), activation energy could be drawn from ion hopping conduction model), ion hopping distance could be drawn from ion hopping conduction model). With the information of and , the carrier transportation in the polymer nanocomposite could be well understand in one hand, and the true conduction mechanism could be confirmed with the help of comparing those parameters with measured ones.

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Cites in Papers - IEEE (1)

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Toshikatsu Tanaka, Alexander Bulinski, Jerome Castellon, Michel Frechette, Stanislaw Gubanski, Josef Kindersberger, Gian Carlo Montanari, Masayuki Nagao, Peter Morshuis, Yasuhiro Tanaka, Serge Pelissou, Alun Vaughan, Yoshimichi Ohki, Clive W. Reed, Simon Sutton, Suh Joon Han, "Dielectric properties of XLPE/Sio2 nanocomposites based on CIGRE WG D1.24 cooperative test results", IEEE Transactions on Dielectrics and Electrical Insulation, vol.18, no.5, pp.1482-1517, 2011.
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