Special Issue: 25th Anniversary of Sensors and Actuators B: Chemical

• N. Barsan
• D. Koziej
• U. Weimar .

• Institute of Physical and Theoretical Chemistry, University of Tübingen, Germany

Available online 27 October 2006.

Abstract

The paper critically reviews the state of the art in the field of experimental techniques possible to be applied to the study of conductometric gas sensors based on semiconducting metal oxides. The used assessment criteria are subordinated to the proposed RD approach, which focuses on the study, and subsequent modelling, of sensors’ performance in realistic operation conditions by means of a combination of phenomenological and spectroscopic techniques. With this viewpoint, the paper presents both the to-date achievements and shortcomings of different experimental techniques, describes – by using selected examples – how the proposed approach can be used and proposes a set of objectives for the near future.

Keywords

• Metal oxide
• Gas sensor
• Transduction
• Spectroscopy
• Operando

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Vitae

Nicolae Barsan received in 1982 his diploma in Physics from the Faculty of Physics of the Bucharest University and in 1993 his PhD in Solid State Physics from the Institute of Atomic Physics, Bucharest, Romania. He was a senior researcher at the Institute of Physics and Technnology of Materials, Bucharest between 1984 and 1995. Since 1995 he is a researcher at the Institute of Physical Chemistry of the University of Tübingen and actually is in charge with the developments in the field of metal oxides based gas sensors. He published about 150 papers and contributions to international conferences.

Dorota Koziej received in 2002 her diploma in Applied Physics from the Faculty of Mathematic and Physics of the Silesian University of Technology in Gliwice, Poland. Since 2002 a PhD student at the Department of Electron Technology of the Silesian University of Technology in Gliwice and since 2004 continuing her PhD studies at the Institute of Physical and Theoretical Chemistry of the University of Tübingen, Germany in the frame of Joint Doctoral Degree Program within the GOSPEL project.

Udo Weimar received his diploma in physics 1989, his PhD in chemistry 1993 and his Habilitation 2002 from the University of Tübingen. He is currently the head of Gas Sensors Group at the University of Tübingen. The research interest of Udo Weimar focuses on chemical sensors as well as on multicomponent analysis and pattern recognition. He is author of about 180 scientific papers and short notes. He is responsible for several European projects and for co-ordinating the Network of Excellence GOSPEL.

2006 Elsevier B.V. All rights reserved.

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