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http://dx.doi.org/10.5369/JSST.2009.18.2.179

Micro toluene gas sensor of SWNTs-PtOx system using the vacuum filtering deposition method  

Kim, Il-Jin (Department of Special Weapons, Daeduk College)
Jeon, Young-Zip (Department of Special Weapons, Daeduk College)
Choi, Chang-Kyu (Department of Special Weapons, Daeduk College)
Lee, Young-Uk (Department of Ground Weapons, Howon University)
Choi, Si-Young (Department of Ground Weapons, Howon University)
Han, Chang-Soo (Nano-Machanical Systems Research Center, KIMM)
Han, Sang-Do (Photo-Electro Materials Research Center, KIER)
Publication Information
Journal of Sensor Science and Technology / v.18, no.2, 2009 , pp. 179-183 More about this Journal
Abstract
Toluene($C_6H_5CH_3$) gas sensors were fabricated using $PtO_x$ loaded with SWNTs by a new deposition method. The nanoparticle powders of SWNTs-$PtO_x$ composite were deposited on Si wafer substrates by a vacuum filtering deposition method. The fabricated sensors were tested against toluene gas which is a kind of the Volatile Organic Compounds. The composition ratio that exhibited the highest response to toluene gases was SWNTs : $PtO_x\;=\;99:1$ in wt% ratio at operating temperature of about $150^{\circ}C$. The response and recovery times of the sensors were as short as less than 1 min., respectively.
Keywords
SWNTs; vacuum filtering deposition method; toluene gas sensors;
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Times Cited By KSCI : 2  (Citation Analysis)
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