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Sensors 2010, 10(3), 2088-2106; doi:10.3390/s100302088
Review

Metal Oxide Gas Sensors: Sensitivity and Influencing Factors

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Received: 17 February 2010; in revised form: 10 March 2010 / Accepted: 14 March 2010 / Published: 15 March 2010
(This article belongs to the Special Issue Metal-Oxide Based Nanosensors)
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Abstract: Conductometric semiconducting metal oxide gas sensors have been widely used and investigated in the detection of gases. Investigations have indicated that the gas sensing process is strongly related to surface reactions, so one of the important parameters of gas sensors, the sensitivity of the metal oxide based materials, will change with the factors influencing the surface reactions, such as chemical components, surface-modification and microstructures of sensing layers, temperature and humidity. In this brief review, attention will be focused on changes of sensitivity of conductometric semiconducting metal oxide gas sensors due to the five factors mentioned above.
Keywords: metal oxide; gas sensors; sensitivity; surface reaction metal oxide; gas sensors; sensitivity; surface reaction
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Wang, C.; Yin, L.; Zhang, L.; Xiang, D.; Gao, R. Metal Oxide Gas Sensors: Sensitivity and Influencing Factors. Sensors 2010, 10, 2088-2106.

AMA Style

Wang C, Yin L, Zhang L, Xiang D, Gao R. Metal Oxide Gas Sensors: Sensitivity and Influencing Factors. Sensors. 2010; 10(3):2088-2106.

Chicago/Turabian Style

Wang, Chengxiang; Yin, Longwei; Zhang, Luyuan; Xiang, Dong; Gao, Rui. 2010. "Metal Oxide Gas Sensors: Sensitivity and Influencing Factors." Sensors 10, no. 3: 2088-2106.


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