Complex impedance analysis and relationships with electrical conductivity, and dielectric constants

Document Type : Original Article

Author

Physics department, Faculty of Science,Banha University, Egypt

Abstract

AC impedance spectroscopy is a valuable tool for studying both the bulk transport properties of a material and the ac conductivity and the dielectric properties.The principle of the impedance analysis method is based on measurements of the sample impedance taken over a wide range of frequencies and then analysed in the complex impedance plane . The mathod was firstly applied to solid electrolytes problems by Bauerle(19)and then used by many workers for various superionic conductors. The impedance analysis method requires the determination  from the measurements two parts of the complex impedance of the sample Z* = Z' + J Z''. The main parameters Rand C are deduced from the analysis of impedance method

The following sources were used in preparing this application note
Bauerle J E 1069 J Phys. Chem. Solids 30 2657. Mackdonald J R (ed) 1987. Impedance spectroscopy emphasizing solid state materials and systems ( New York Wiley).