Title :
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
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;
Conference_Titel :
Actual Problems of Electron Devices Engineering (APEDE), 2014 International Conference on
Conference_Location :
Saratov
Print_ISBN :
978-1-4799-3437-9
DOI :
10.1109/APEDE.2014.6958237
