Dielectric Behavior of Paint/PZT Nanocomposite Films
Ashok K. Batra *
Department of Physics, Chemistry and Mathematics (Materials Science Group), P.O.Box 1268, Alabama A&M University Normal, AL 35762, USA
Almuatasim Alomari
Department of Physics, Chemistry and Mathematics (Materials Science Group), P.O.Box 1268, Alabama A&M University Normal, AL 35762, USA.
Mychal Thomas
Department of Physics, Chemistry and Mathematics (Materials Science Group), P.O.Box 1268, Alabama A&M University Normal, AL 35762, USA.
*Author to whom correspondence should be addressed.
Abstract
This article presents, for the first time, the detailed functionality of 0-3 Paint/PZT composite films concerning their dielectric and electrical transport properties. Ferroelectric Paint: Lead Zirconate Titanate (Paint/PZT) composite films have been fabricated by the conventional cost effective paint brushing technique. The dielectric parameters of the composite films were calculated by the measurement of capacitance and dielectric loss. The properties investigated include, dielectric constants, ε' and ε'' as a function of temperature, frequency and composition. From the foregoing parameters, it is indicated that the dielectric constant and A. C. conductivity (σAC) increase with increase of filler content, temperature and frequency, implying functionality of the films. The results reveal that σAC obeys the relation σAC = Aωs, and exponent s, was found to decrease by increasing the temperature. It was found that, the correlated barrier hopping (C. B. H.) is the dominant conduction mechanism in nanocomposite films fabricated.
Keywords: Dielectric, composites, pzt, paint