We address a multiwall carbon nanotube (MWCNT) gas sensor that has an enhanced reproducibility. The sensor consists of a heater, an insulating layer, a pair of contact electrodes, and an MWCNT-sensing film on a micromachined diaphragm. The heater plays a role in the temperature changes to modify the rates for desorption of gases on the sensing surface during sensor operation. Gas sensor responses of MWCNT-film to NO/sub 2/ at room temperature are reported. We show that the sensor exhibits a reversible response with a time constant of a few minutes at thermal treatment temperature of 130/spl deg/C.
No takes yet. Share an insight, caveat, or question.
Cho et al. (2005) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: