Chalcogenide-based chemical sensors for atmospheric pollution control

Chalcogenide-based chemical sensors for atmospheric pollution control

The authors report about characterization of chalcogenide-based thin films, as a materials for gas-sensing applications. The sensing behavior of the As­S­Te films was tested with environmental pollutant gases such as NO2, CO, and SO2. A significant sensitivity has been observed for nitrogen dioxide....

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Veröffentlicht in:Pure and applied chemistry 2001-01, Vol.73 (12), p.2001-2004
Hauptverfasser: Marian, S., Tsiulyanu, D., Marian, T., Liess, H.-D.
Format: Artikel
Sprache:eng
Schlagworte:
Chalcogenides
Chemical sensors
Detection
Environmental testing
Nitrogen dioxide
Organic chemistry
Pollution control
Recovery time
Reproducibility
Thin films
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Zusammenfassung:The authors report about characterization of chalcogenide-based thin films, as a materials for gas-sensing applications. The sensing behavior of the As­S­Te films was tested with environmental pollutant gases such as NO2, CO, and SO2. A significant sensitivity has been observed for nitrogen dioxide. The detection range for NO2 was between 0.95­1.9 ppm in ambient air. The response and the recovery time is rapid, with good reproducibility and high sensibility. All the measurements were performed at room temperature. Gas-sensing applications are considered.
ISSN:0033-4545
1365-3075
DOI:10.1351/pac200173122001