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Workflow for high throughput screening of gas sensing materials

  • The workflow of a high throughput screening setup for the rapid identification of new and improved sensor materials is presented. The polyol method was applied to prepare nanoparticular metal oxides as base materials, which were functionalised by surface doping. Using multi-electrode substrates and high throughput impedance spectroscopy (HT-IS) a wide range of materials could be screened in a short time. Applying HT-IS in search of new selective gas sensing materials a NO2-tolerant NO sensing material with reduced sensitivities towards other test gases was identified based on iridium doped zinc oxide. Analogous behaviour was observed for iridium doped indium oxide.

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Author:Tobias J. Koplin, Maike Siemons, César Océn-Valéntin, Daniel Sanders, Ulrich Simon
Document Type:Conference Proceeding
Year of Completion:2006
Publishing Institution:Fachhochschule Aachen
Contributing Corporation:International Symposium on Sensor Science, I3S 2005 <3; 2005; Juelich, Germany>
Date of the Publication (Server):2006/05/22
Tag:High throughput experimentation; doping; gas sensor; impedance spectroscopy; metal oxide; nitrogen oxides
GND Keyword:Biosensor
Institutes:FH Aachen / Fachbereich Medizintechnik und Technomathematik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie
collections:FH Aachen / International Symposium on Sensor Science, I3S 2005 <3; 2005; Ju