Title :
Organic Vaporensors Based on Single-walled CNTs
Author :
Chaisitsak, S. ; Chaithongrat, B.
Author_Institution :
King Mongkut´s Inst. of Technol. Ladkrabang, Bangkok
Abstract :
An investigation of the influence of organic vapor (ethanol, methanol and acetone) on the characteristics of simple-structure sensors fabricated from single-walled carbon nanotube (SWCNT) thin films is reported. SWCNTs were directly deposited, by using atmospheric pressure CVD using alcohol-ferrocene mist, on the patterned Al electrodes to fabricate a sensor. It was found that the characteristic of SWCNT-based sensors depended on the depositing position in CVD reactor. The sensor response could be optimized by adjusting the depositing position along the inner quartz reactor. The sensor reproducibility could be improved by light soaking after switching to air.
Keywords :
carbon nanotubes; gas sensors; nanotube devices; organic compounds; Al; acetone; alcohol-ferrocene mist; atmospheric pressure CVD; ethanol; gas sensor; inner quartz reactor; light soaking; methanol; organic vapor sensors; organic vaporensor; patterned Al electrodes; sensor reproducibility; simple-structure sensor; single-walled carbon nanotube thin films; Chemical sensors; Electrodes; Ethanol; Fabrication; Furnaces; Gas detectors; Inductors; Sensor phenomena and characterization; Temperature; Thin film sensors;
Conference_Titel :
Sensors, 2006. 5th IEEE Conference on
Conference_Location :
Daegu
Print_ISBN :
1-4244-0375-8
Electronic_ISBN :
1930-0395
DOI :
10.1109/ICSENS.2007.355813
