Carbon nanotube based sensors and fluctuation enhanced sensing

Ákos Kukovecz, Dániel Molnár, Krisztián Kordás, Zoltán Gingl, Hannu Moilanen, Róbert Mingesz, Zoltán Kónya, Jani Mäklin, Niina Halonen, Géza Tóth, Henrik Haspel, Péter Heszler, Melinda Mohl, András Sápi, Siegmar Roth, Robert Vajtai, Pulickel M. Ajayan, Yann Pouillon, Angel Rubio, Imre Kiricsi

Research output: Conference article

7 Citations (Scopus)


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 dc 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.

Original languageEnglish
Pages (from-to)1217-1221
Number of pages5
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Issue number3-4
Publication statusPublished - máj. 27 2010
Event23rd International Conference on Amorphous and Nanocrystalline Semiconductors, ICANS23 - Utrecht, Netherlands
Duration: aug. 23 2009aug. 28 2009

ASJC Scopus subject areas

  • Condensed Matter Physics

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  • Cite this

    Kukovecz, Á., Molnár, D., Kordás, K., Gingl, Z., Moilanen, H., Mingesz, R., Kónya, Z., Mäklin, J., Halonen, N., Tóth, G., Haspel, H., Heszler, P., Mohl, M., Sápi, A., Roth, S., Vajtai, R., Ajayan, P. M., Pouillon, Y., Rubio, A., & Kiricsi, I. (2010). Carbon nanotube based sensors and fluctuation enhanced sensing. Physica Status Solidi (C) Current Topics in Solid State Physics, 7(3-4), 1217-1221.