Carbon nanotube based sensors and fluctuation enhanced sensing
Drop-cast thin films of multi-walled carbon nanotubes are used as gas sensors in a four-probe measurement setup. The novelty of the approach is that the sensor information is extracted from the noise of the de resistance data using Fluctuation Enhanced Sensing (FES). We investigate the effects of me...
Elmentve itt :
Szerzők: | |
---|---|
Dokumentumtípus: | Cikk |
Megjelent: |
2010
|
Sorozat: | PHYSICA STATUS SOLIDI C-CURRENT TOPICS IN SOLID STATE PHYSICS
7 No. 3-4 |
Tárgyszavak: | |
doi: | 10.1002/pssc.200982973 |
mtmt: | 1452743 |
Online Access: | http://publicatio.bibl.u-szeged.hu/22561 |
Tartalmi kivonat: | Drop-cast thin films of multi-walled carbon nanotubes are used as gas sensors in a four-probe measurement setup. The novelty of the approach is that the sensor information is extracted from the noise of the de resistance data using Fluctuation Enhanced Sensing (FES). We investigate the effects of measurement duration, gate voltage and frequency window on the chemical selectivity of the MWCNT-FES sensor. The selectivity of the device is superior to those of conventional gas sensors, and preliminary experiments indicate that it may also be possible to extract quantitative information from the noise. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim |
---|---|
Terjedelem/Fizikai jellemzők: | 1217-1221 |
ISSN: | 1862-6351 |