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

Claudia Struzzi, Mattia Scardamaglia, Juan Casanova-Cháfer, R Calavia, Jean-François Colomer, A. Kondyurin, M Bilek, M Britun, Rony Snyders, Eduard Llobet, Carla Bittencourt

Research output: Contribution to journalArticle

Abstract

Modification of the surface electronic properties of vertically aligned and randomly distributed carbon nanotubes and the hydrophobic character after exposure to Ar:F 2 and CF 4 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 2 and NH 3). 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 3 when using vertically aligned carbon nanotubes.

Original languageEnglish
Pages (from-to)945-952
Number of pages8
JournalSensors and Actuators B: Chemical
Volume281
DOIs
Publication statusPublished - 15 Feb 2019

Fingerprint

Carbon Nanotubes
Carbon nanotubes
Gases
carbon nanotubes
Geometry
sensors
Sensors
geometry
gases
Nitrogen Dioxide
Fluorination
Hydrophobicity
Ammonia
Electronic properties
nitrogen dioxide
fluorination
Atmospheric humidity
hydrophobicity
Nitrogen
contaminants

Keywords

  • Fluorinated carbon nanotubes
  • Increased response reproducibility under humid conditions
  • Room temperature gas sensors
  • Sensing response to NO and NH

Cite this

Struzzi, Claudia ; Scardamaglia, Mattia ; Casanova-Cháfer, Juan ; Calavia, R ; Colomer, Jean-François ; Kondyurin, A. ; Bilek, M ; Britun, M ; Snyders, Rony ; Llobet, Eduard ; Bittencourt, Carla. / Exploiting sensor geometry for enhanced gas sensing properties of fluorinated carbon nanotubes under humid environment. In: Sensors and Actuators B: Chemical . 2019 ; Vol. 281. pp. 945-952.
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Struzzi, C, Scardamaglia, M, Casanova-Cháfer, J, Calavia, R, Colomer, J-F, Kondyurin, A, Bilek, M, Britun, M, Snyders, R, Llobet, E & Bittencourt, C 2019, 'Exploiting sensor geometry for enhanced gas sensing properties of fluorinated carbon nanotubes under humid environment' Sensors and Actuators B: Chemical , vol. 281, pp. 945-952. https://doi.org/10.1016/j.snb.2018.10.159

Exploiting sensor geometry for enhanced gas sensing properties of fluorinated carbon nanotubes under humid environment. / Struzzi, Claudia ; Scardamaglia, Mattia; Casanova-Cháfer, Juan; Calavia, R; Colomer, Jean-François; Kondyurin, A. ; Bilek, M; Britun, M; Snyders, Rony; Llobet, Eduard; Bittencourt, Carla.

In: Sensors and Actuators B: Chemical , Vol. 281, 15.02.2019, p. 945-952.

Research output: Contribution to journalArticle

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AU - Scardamaglia, Mattia

AU - Casanova-Cháfer, Juan

AU - Calavia, R

AU - Colomer, Jean-François

AU - Kondyurin, A.

AU - Bilek, M

AU - Britun, M

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AU - Llobet, Eduard

AU - Bittencourt, Carla

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