Communication

Nanoelectronic Carbon Dioxide Sensors†

  1. A. Star,
  2. T.-R. Han1,
  3. V. Joshi1,
  4. J.-C. P. Gabriel1,
  5. G. Grüner2

Article first published online: 29 OCT 2004

DOI: 10.1002/adma.200400322

Issue

Advanced Materials

Advanced Materials

Volume 16, Issue 22, pages 2049–2052, November, 2004

Additional Information

How to Cite

Star, A., Han, T.-R., Joshi, V., Gabriel, J.-C. P. and Grüner, G. (2004), Nanoelectronic Carbon Dioxide Sensors. Adv. Mater., 16: 2049–2052. doi: 10.1002/adma.200400322

Author Information

  1. 1

    Nanomix Inc., Emeryville, CA 94608, USA

  2. 2

    Department of Physics, University of California, Los Angeles, Los Angeles, CA 90095, USA

  1. †

    We acknowledge the Nanomix technical staff for their assistance with device fabrication and measurements. The research was supported partially by NSF SBIR # 0319991 and DOE DE-FG36-03GO13169. We thank J. R. Stetter for useful discussions.

Publication History

  1. Issue published online: 9 DEC 2004
  2. Article first published online: 29 OCT 2004
  3. Manuscript Accepted: 9 JUN 2004
  4. Manuscript Received: 5 MAR 2004

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Keywords:

  • Carbon nanotubes;
  • Field-effect transistors;
  • Nanoelectronic sensors;
  • Sensors, gas
Thumbnail image of graphical abstract

Carbon nanotube field-effect transistors (NTFETs) coated with poly(ethyleneimine) (PEI) and starch polymers exhibit electrical conductance changes upon exposure to CO2 gas in air at ambient temperature (see Figure). This observation has furnished nanoelectronic CO2 sensors. Their small size and low power consumption has enormous potential in wireless sensing for industrial and medical CO2 sensor units.

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