Impedance spectroscopy study of a response of potassium polytitanate based gas sensor

Author

Fedorov, F.S. ; Kolesnichenko, V.V. ; Kiselev, I. ; Varezhnikov, A.S. ; Burmistrov, I.N. ; Gorokhovsky, A.V. ; Sysoev, V.V.

Author_Institution

Yuri Gagarin State Tech. Univ. of Saratov, Saratov, Russia

Volume

2

fYear

2014

fDate

25-26 Sept. 2014

Firstpage

170

Lastpage

173

Abstract

Quasi-amorphous potassium polytitanates represent a new type of chemical compounds described by formula K₂o·nTiO₂·mH₂O and are characterized by high specific surface. These materials are very promising as active materials in gas sensors. In this work, we studied the potassium polytitanates placed over SiO₂/Si/SiO₂ substrate equipped with multiple coplanar electrodes for the electrical response under various gases in mixture with air by impedance spectrometry.

Keywords

RC circuits; electrochemical electrodes; electrochemical impedance spectroscopy; equivalent circuits; gas sensors; potassium compounds; K₂O-TiO₂-H₂O; RC components; SiO₂-Si-SiO₂; electrical response; equivalent circuit; gas identification; gas sensors; impedance spectrometry; multiple coplanar electrodes; quasiamorphous potassium polytitanates; Ceramics; Electronic mail; Gas detectors; Impedance; Metals; Spectroscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Actual Problems of Electron Devices Engineering (APEDE), 2014 International Conference on

Conference_Location

Saratov

Print_ISBN

978-1-4799-3437-9

Type

conf

DOI

10.1109/APEDE.2014.6958237

Filename

6958237