Title :
In2O3:Ga-based Ceramics: Advantages and shortcomings for application in one-electrode gas sensors
Author :
Cho, B.K. ; Korotcenkov, G. ; Golovanov, V. ; Boris, Iu ; Karkotsky, G.F. ; Lychkovsky, Yu.N.
Author_Institution :
Dept. of Mater. Sci. & Eng., Gwangju Inst. of Sci. & Technol., Gwangju, South Korea
Abstract :
The influence of doping by gallium (0-10 wt.%) on gas-sensing characteristics of In2O3-based gas sensors has been studied. In2O3-based ceramic was prepared by sol-gel technology. Ozone, CO, CH4 and H2 were used as tested gases. The addition of Ga into the In2O3 matrix was found to be effective in increasing sensor response to ozone and improvement of sensor response selectivity. It was assumed that this improvement was connected with optimization of In2O3 ceramics structure.
Keywords :
carbon compounds; ceramics; electrodes; gallium; gas sensors; hydrogen; indium compounds; optimisation; sol-gel processing; CH4; CO; H2; In2O3:Ga; ceramics; doping; one-electrode gas sensor; optimization; ozone; sol-gel; Doping; Gas detectors; Gases; Humidity; Metals; Sensitivity; Ga; In2O3; characterization; doping; isovalent impurities; one-electrode gas sensors; optimization;
Conference_Titel :
Sensing Technology (ICST), 2013 Seventh International Conference on
Conference_Location :
Wellington
Print_ISBN :
978-1-4673-5220-8
DOI :
10.1109/ICSensT.2013.6727694