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Exploiting sensor geometry for enhanced gas sensing properties of fluorinated carbon nanotubes under humid environment

Struzzi, C. LU ; Scardamaglia, M. ; Casanova-Chafer, J. ; Calavia, R. ; Colomer, J. F. ; Kondyurin, A. ; Bilek, M. ; Britun, N. ; Snyders, R. and Llobet, E. , et al. (2019) In Sensors and Actuators, B: Chemical 281. p.945-952
Abstract

Modification of the surface electronic properties of vertically aligned and randomly distributed carbon nanotubes and the hydrophobic character after exposure to Ar:F2 and CF4 plasma are exploited to optimize the sensing characteristics of these materials. The sensing properties of fluorinated carbon nanotubes are disclosed by probing their stability and responsiveness towards the detection of two selected pollutants such as nitrogen dioxide and ammonia (NO2 and NH3). The effects of both humidity level and geometry of the sensing layer are assessed. It is demonstrated that fluorination, by increasing the surface hydrophobicity, results in increased response reproducibility and enhanced sensor... (More)

Modification of the surface electronic properties of vertically aligned and randomly distributed carbon nanotubes and the hydrophobic character after exposure to Ar:F2 and CF4 plasma are exploited to optimize the sensing characteristics of these materials. The sensing properties of fluorinated carbon nanotubes are disclosed by probing their stability and responsiveness towards the detection of two selected pollutants such as nitrogen dioxide and ammonia (NO2 and NH3). The effects of both humidity level and geometry of the sensing layer are assessed. It is demonstrated that fluorination, by increasing the surface hydrophobicity, results in increased response reproducibility and enhanced sensor response towards NH3 when using vertically aligned carbon nanotubes.

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Contribution to journal
publication status
published
subject
keywords
Fluorinated carbon nanotubes, Increased response reproducibility under humid conditions, Room temperature gas sensors, Sensing response to NO and NH
in
Sensors and Actuators, B: Chemical
volume
281
pages
8 pages
publisher
Elsevier
external identifiers
  • scopus:85056645314
ISSN
0925-4005
DOI
10.1016/j.snb.2018.10.159
language
English
LU publication?
yes
id
db81f3ac-2987-4a5e-a078-c8cfa546db25
date added to LUP
2018-11-26 10:17:26
date last changed
2020-02-23 07:47:04
@article{db81f3ac-2987-4a5e-a078-c8cfa546db25,
  abstract     = {<p>Modification of the surface electronic properties of vertically aligned and randomly distributed carbon nanotubes and the hydrophobic character after exposure to Ar:F<sub>2</sub> and CF<sub>4</sub> plasma are exploited to optimize the sensing characteristics of these materials. The sensing properties of fluorinated carbon nanotubes are disclosed by probing their stability and responsiveness towards the detection of two selected pollutants such as nitrogen dioxide and ammonia (NO<sub>2</sub> and NH<sub>3</sub>). The effects of both humidity level and geometry of the sensing layer are assessed. It is demonstrated that fluorination, by increasing the surface hydrophobicity, results in increased response reproducibility and enhanced sensor response towards NH<sub>3</sub> when using vertically aligned carbon nanotubes.</p>},
  author       = {Struzzi, C. and Scardamaglia, M. and Casanova-Chafer, J. and Calavia, R. and Colomer, J. F. and Kondyurin, A. and Bilek, M. and Britun, N. and Snyders, R. and Llobet, E. and Bittencourt, C.},
  issn         = {0925-4005},
  language     = {eng},
  pages        = {945--952},
  publisher    = {Elsevier},
  series       = {Sensors and Actuators, B: Chemical},
  title        = {Exploiting sensor geometry for enhanced gas sensing properties of fluorinated carbon nanotubes under humid environment},
  url          = {http://dx.doi.org/10.1016/j.snb.2018.10.159},
  doi          = {10.1016/j.snb.2018.10.159},
  volume       = {281},
  year         = {2019},
}