Constant-power operation of functionalized carbon nanotube sensors for alcohol vapor detection

@article{Ouyang2008ConstantpowerOO,
  title={Constant-power operation of functionalized carbon nanotube sensors for alcohol vapor detection},
  author={Mengxing Ouyang and Mandy Lai Yi Sin and B. Tsoi and G.C.T. Chow and G.M.K. Wong and W.J. Li and Philip Heng Wai Leong and Ka Wai Wong},
  journal={2008 3rd IEEE International Conference on Nano/Micro Engineered and Molecular Systems},
  year={2008},
  pages={747-752}
}
  • M. Ouyang, M. Sin, +5 authors K. Wong
  • Published 2008
  • Materials Science
  • 2008 3rd IEEE International Conference on Nano/Micro Engineered and Molecular Systems
A constant-power control circuit has been built successfully for the digital operation of CNT-based alcohol vapor sensors. The sensors, which are based on bundles of chemically functionalized multi-walled carbon nanotubes (f-CNTs), have been proven to be sensitive towards alcohol molecules. The resistance of the sensors increases upon exposure to alcohol vapors. The constant-power configuration is developed to avoid the self-heating effect, which is a significant factor in affecting the sensor… Expand
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