CPE investigation of gold thin films

Author

Bonyár, Attila ; Harsányi, Gábor

Author_Institution

Dept. of Electron. Technol., Budapest Univ. of Technol. & Econ., Budapest, Hungary

fYear

2011

fDate

20-23 Oct. 2011

Firstpage

117

Lastpage

120

Abstract

In this work we investigate the CPE (constant phase element) behavior of gold thin films with EIS (electrochemical impedance spectroscopy). With results obtained on four technologically different gold thin films in different electrolytes we demonstrate that the consideration of capacitance dispersion of the working electrode is necessary for the precise determination of the double layer capacitance and charge transfer resistance in electrochemical sensor applications. We also investigate the effect of surface roughness of the electrodes on the CPE behavior.

Keywords

capacitance; electrochemical electrodes; electrochemical impedance spectroscopy; electrolytes; gold; metallic thin films; surface roughness; Au; capacitance dispersion; charge transfer resistance; constant phase element property; electrochemical impedance spectroscopy; electrochemical sensor applications; electrolytes; gold thin films; surface roughness; Capacitance; Electrodes; Gold; Impedance; Rough surfaces; Surface impedance; Surface roughness; CPE; EIS; capacitance dispersion; gold; thin film;

fLanguage

English

Publisher

ieee

Conference_Titel

Design and Technology in Electronic Packaging (SIITME), 2011 IEEE 17th International Symposium for

Conference_Location

Timisoara

Print_ISBN

978-1-4577-1276-0

Electronic_ISBN

978-1-4577-1275-3

Type

conf

DOI

10.1109/SIITME.2011.6102699

Filename

6102699