Development of thermoelectric gas sensors for volatile organic compounds
Data(s) |
2006
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Resumo |
This paper describes the design and development of a thermoelectric gas sensor suitable for the detection of Volatile Organic Compounds (VOCs). In order to enhance the seebeck coefficient of the sensor, we have deposited chromium metal films on a limited area of the glass substrate. Tin oxide thin film was deposited on top of these metal films. The resulting metal/semiconductor film exhibits a high seebeck coefficient of 400 mu V/ degrees C. Platinum catalyst film deposited on the oxide film to create the necessary temperature gradient resulted in further enhancement in the sensitivity of the sensor to target gases. The sensor shows high sensitivity to ppm-change in the concentration of target hydrocarbons at a relatively low temperature of 120 degrees C. |
Formato |
application/pdf |
Identificador |
http://eprints.iisc.ernet.in/30549/1/04178713.pdf Anuradha, S and Rajanna, K (2006) Development of thermoelectric gas sensors for volatile organic compounds. In: 5th IEEE Sensors Conference, Oct 22-25, 2006, Daegu, South Korea, pp. 687-689. |
Publicador |
Institute of Electrical and Electronics Engineers |
Relação |
http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4178713 http://eprints.iisc.ernet.in/30549/ |
Palavras-Chave | #Instrumentation and Applied Physics (Formally ISU) |
Tipo |
Conference Paper PeerReviewed |