Photonic Sensors, Volume. 6, Issue 2, 153(2016)
Parametric Analysis of NO2 Gas Sensor Based on Carbon Nanotubes
Two types of carbon nanotubes [single walled nanotubes (SWCNTs) and multi walled carbon nanotubes (MWCNTs)] are deposited on porous silicon by the drop casting technique. Upon exposure to test gas mixing ratio 3% NO2, the sensitivity response results show that the SWCNTs’ sensitivity reaches to 79.8%, where MWCNTs’ is 59.6%. The study shows that sensitivity response of the films increases with an increase in the operating temperature up to 200 ℃ and 150 ℃ for MWCNTs and SWCNTs. The response and recovery time is about 19 s and 54 s at 200℃ for MWCNTs, respectively, and 20 s and 56 s at 150℃ for SWCNTs.
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Asama N. NAJE, Russul R. IBRAHEEM, and Fuad T. IBRAHIM. Parametric Analysis of NO2 Gas Sensor Based on Carbon Nanotubes[J]. Photonic Sensors, 2016, 6(2): 153
Category: Regular
Received: Dec. 3, 2015
Accepted: Feb. 24, 2016
Published Online: Oct. 20, 2016
The Author Email: NAJE Asama N. (Naje.as75@gmail.com)