Development and improvement of carbon nanotube-based ammonia gas sensors using ink-jet printed interdigitated electrodes

Pattamon Teerapanich, Myo Tay Zar Myint, Claire M. Joseph, Gabor L. Hornyak, Joydeep Dutta

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Gas sensors have been widely used in many applications including environmental monitoring, industrial control, and detection in warfare or for averting security threats. High sensitivity, selectivity, and fast response time are required for application in real-time monitoring and detection of toxic gases. Single-walled carbon nanotubes (SWCNTs) provide large specific surface area beneficial for gas adsorption thereby increasing sensor sensitivity. In this paper, ammonia (NH3) gas sensors based on SWCNTs were developed using interdigitated silver electrodes printed with nanoparticulate ink on alumina substrates. Simple and inexpensive methods including shaking and dispersion in appropriate solvents were used to debundle SWCNTs for improving sensor response. The fabricated sensors showed a maximum response of 27.3% for 500 ppm NH 3 at room temperature. Detection limit of the sensor devices at room temperature were estimated to be ∼ 3 ppm.

Original languageEnglish
Article number6423931
Pages (from-to)255-262
Number of pages8
JournalIEEE Transactions on Nanotechnology
Volume12
Issue number2
DOIs
Publication statusPublished - 2013

Fingerprint

Chemical sensors
Ink
Ammonia
Carbon nanotubes
Single-walled carbon nanotubes (SWCN)
Electrodes
Sensors
Gas adsorption
Monitoring
Military operations
Specific surface area
Silver
Alumina
Temperature
Substrates
Gases

Keywords

  • Ammonia
  • gas sensor
  • ink-jet printer
  • interdigitated silver electrode (IDE)
  • single-walled carbon nanotubes (SWCNTs)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications

Cite this

Development and improvement of carbon nanotube-based ammonia gas sensors using ink-jet printed interdigitated electrodes. / Teerapanich, Pattamon; Myint, Myo Tay Zar; Joseph, Claire M.; Hornyak, Gabor L.; Dutta, Joydeep.

In: IEEE Transactions on Nanotechnology, Vol. 12, No. 2, 6423931, 2013, p. 255-262.

Research output: Contribution to journalArticle

Teerapanich, Pattamon ; Myint, Myo Tay Zar ; Joseph, Claire M. ; Hornyak, Gabor L. ; Dutta, Joydeep. / Development and improvement of carbon nanotube-based ammonia gas sensors using ink-jet printed interdigitated electrodes. In: IEEE Transactions on Nanotechnology. 2013 ; Vol. 12, No. 2. pp. 255-262.
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