I  U  P  A  C




News & Notices

Organizations & People

Standing Committees




. . CI
. . PAC
. . Macro. Symp.

. . Books
. . Solubility Data



Links of Interest

Search the Site

Home Page


Pure Appl. Chem. Vol. 73, No. 12, pp. 2001-2004 (2001)

Pure and Applied Chemistry

Vol. 73, Issue 12

Chalcogenide-based chemical sensors for atmospheric pollution control*

S. Marian1,2,**, D. Tsiulyanu2, T. Marian2, and H.-D. Liess1

1University of the Federal Armed Forces Munich, Faculty of Electrical Engineering, Institute of Physics, Werner-Heisenberg-Weg 39, D-85579 Neubiberg, Germany; 2Technical University, Department of Physics, Datchia Street 41, MD-2060 Chishinau, Moldova

Abstract: 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.

* An issue of reviews and research papers based on presentations made at the IUPAC/ICSU Workshop on Electrochemistry and Interfacial Chemistry in Environmental Clean-up and Green Chemical Processes, Coimbra, Portugal, 6-7 April, 2001.
** Corresponding author.

Back to Contents for access to full text


Page last modified 24 March 2002.
Copyright © 2002 International Union of Pure and Applied Chemistry.
Questions or comments about IUPAC, please contact, the Secretariat.
Questions regarding the website, please contact web manager.