Title :
An analysis of MoO3-WO3 based gas sensors for monitoring applications
Author :
Galatsis, K. ; Li, Y.X. ; Wlodarski, W. ; Kalantar-zadeh, K. ; Comini, E. ; Faglia, G. ; Sberveglieri, G.
Author_Institution :
Sensor Technol. Lab., R. Melbourne Inst. of Technol., Vic., Australia
Abstract :
MoO3-WO3 thin films fabricated by the sol-gel technique showed exceptional gas sensing properties to NO2 and ethanol with a response of 2.3 to 1 ppm of NO2 and 50 to 500 ppm of ethanol. The films showed an unmeasurable response to CO concentrations below 30 ppm, making the films practically useful for applications such as selective NO2 environmental monitoring and for alcohol breath testing by law enforcement bodies
Keywords :
air pollution measurement; chemical variables measurement; electric sensing devices; gas sensors; molybdenum compounds; nitrogen compounds; organic compounds; sol-gel processing; thin film devices; tungsten compounds; MoO3-WO3; MoO3-WO3 based gas sensors; NO2; NO2 selective environmental monitoring; air pollution; alcohol breath testing; ethanol; law enforcement; sol-gel technique; Australia; Costs; Cyclic redundancy check; Ethanol; Gas detectors; Gases; Microstructure; Monitoring; Thin film sensors; Tungsten;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2001. IMTC 2001. Proceedings of the 18th IEEE
Conference_Location :
Budapest
Print_ISBN :
0-7803-6646-8
DOI :
10.1109/IMTC.2001.928801
