Capacitive sensor arrays for the real time detection of volatile organic compounds

 
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2011 (EN)
Capacitive sensor arrays for the real time detection of volatile organic compounds (EN)

Πάτσης, Γεώργιος Π. (EL)
Βαλαμόντες, Ευάγγελος Σ. (EL)
Γουστουρίδης, Δημήτριος (EL)
Πανταζής, Νίκος Α. (EL)
Ράπτης, Ιωάννης Α. (EL)

Σανοπούλου, Μερόπη (EL)
N/A (EN)

Capacitive-type gas sensors rely on changes in the dielectric properties of the sensing polymeric layer due to absorption of Volatile Organic Compounds (VOCs) or moisture. They are promising devices in terms of ease and low cost of fabrication, reversibility and the wide range of sensing material choice. In the present work, the aim is to explore the fabrication issues of the InterDigitated Electrodes (IDE) through a generic simulation model for the prediction of the capacitance of various IDE structures. Based on the simulation results, an IDE layout was selected for the realization and evaluation of chemcapacitor arrays in the presence of different humidity levels and low concentrations of VOCs with dielectric constant close to those of polymers. The extracted results will be further exploited for the fabrication optimization of an InterDigitated Capacitor (IDC) layout with increased selectivity and sensitivity in specific applications. (EN)

conferenceItem
poster

capacitance (EN)
Αισθητήρας αερίου (EN)
Microfabrication (EN)
Χωρητικότητα (EN)
Polymer (EN)
Gas sensor (EN)
Μικροκατασκευαστική (EN)
Πολυμερές (EN)

ΤΕΙ Αθήνας (EL)
Technological Educational Institute of Athens (EN)

5th International Conference on Sensing Technology, ICST 2011 (EN)

English

2011

DOI: 10.1109/ICSensT.2011.6137013

IEEE (EN)



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