(Ba,Sr)TiO3 - BASED ELECTROLYTE CONDUCTIVITY SENSORS: A COMPARATIVE STUDY

Authors

  • V.V. Buniatyan National Polytechnic University of Armenia Author
  • C.A. Huck 1FH Aachen | University of Applied Sciences, Institute of Nano- and Biotechnologies, Campus Jülich Author
  • A.S. Poghosyan 1FH Aachen | University of Applied Sciences, Institute of Nano- and Biotechnologies, Campus Jülich Author
  • M.J. Schöning 1FH Aachen | University of Applied Sciences, Institute of Nano- and Biotechnologies, Campus Jülich Author
  • T.N. Petrosyan National Polytechnic University of Armenia Author

Keywords:

contactless, electrolyte conductivity, perovskite-oxide film, interdigitated electrode.

Abstract

A contactless electrolyte conductivity sensor based on (Ba,Sr)TiO3 films and Pt interdigitated electrodes is fabricated and examined. Two types of sensor designs with buried(into insulating SiO2layer) and non-buried interdigitated electrodes were investigated and compared. The sensors were characterized by means of impedance-spectroscopy measurements indifferent commercially available electrolyte-conductivity standard solutions ranging from 0.084 to 50 mS/cm and over the frequency range from 1 Hz to 3 MHz. It is shown that the parameters of sensors with the Pt electrodes buried in SiO2 layer are favourable.

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Published

18.09.2026

Issue

Vol. 2 (2014)

Section

Articles

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