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Dielectric Properties of Materials Showing Constant-Phase-Element (CPE) Impedance Response

Orazem, Mark E. and Frateur, Isabelle and Tribollet, Bernard and Vivier, Vincent and Marcelin, Sabrina and Pébère, Nadine and Bunge, Annette L. and White, Erick A. and Riemer, Douglas. P. and Musiani, Marco Dielectric Properties of Materials Showing Constant-Phase-Element (CPE) Impedance Response. (2013) Journal of the Electrochemical Society, 160 (6). C215-C225. ISSN 0013-4651

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Official URL: http://dx.doi.org/10.1149/2.033306jes

Abstract

Constant-Phase Elements (CPE) are often used to fit impedance data arising from a broad range of experimental systems. Four approaches were used to interpret CPE parameters associated with the impedance response of human skin and two metal oxides in terms of characteristic frequencies and film thickness. The values obtained with each approach were compared against independent measurements. The power-law model developed recently by Hirschorn et al.1,2 provided the most reliable interpretation for systems with a normal distribution of properties. Readers are cautioned that the CPE parameter Q does not provide an accurate value for capacitance, even when the CPE exponent α is greater than 0.9.

Item Type:Article
Additional Information:Thanks to Electrochemical Society editor. The definitive version is available at http://jes.ecsdl.org The original PDF of the article can be found at Electrochemical Society website : http://jes.ecsdl.org/content/160/6/C215
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Colorado School of Mines (USA)
Other partners > Consiglio Nazionale delle Ricerche - CNR (ITALY)
Other partners > Hutchinson Technology (USA)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Other partners > Université Pierre et Marie Curie, Paris 6 - UPMC (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > University of Florida (USA)
Laboratory name:
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Deposited By: cirimat webmestre
Deposited On:06 Jul 2015 11:48

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