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Document type:
Konferenzbeitrag 
Author(s):
Abdelhalim, A.; Abdellah A.; Lugli, P. 
Title:
Complex impedance characterization of highly sensitive carbon nanotube gas sensors 
Abstract:
Complex impedance spectroscopy is used to characterize carbon nanotube (CNT) based gas sensors under the exposure of different concentrations of NH3 (10 ppm, 25 ppm, 50 ppm and 100 ppm). The characterization is performed in a frequency range between 20 Hz and 2 MHz. The frequency response of the CNT film showed high dependence on the film resistance. The variation in the normalized response of the sensor with the frequency might suggest a change in the sensing mechanism at certain frequencies. M...    »
 
Book / Congress title:
SENSORS, 2014 IEEE, 47-50 (2014) 
Congress (additional information):
Valencia, Spain, Nov 02 - 05, 2014 
Publisher:
IEEE Xplore Digital Library 
Year:
2014 
Quarter:
4. Quartal 
Year / month:
2014-11 
Month:
Nov 
Pages:
47 - 50 
Language:
en