Diese Untersuchungen dienen zur Aufklärung der Funktionsweise von chemischen Gassensoren.
Um die Wechselwirkungen mit Gasen zu verstehen, werden zwei verschiedene Arten sensitiver Schichten untersucht:
In beiden Fällen werden alle Untersuchungsmethoden unter Arbeitsbedingungen (Operando) angewandt. Dies bedeutet, dass die Sensoren auf die gleiche Art und Weise hergestellt werden wie richtige Sensoren (z.B. werden die Metalloxide als polykristalliner, dicker, poröser Film auf ein Substrat mit Elektroden und Heizer aufgebracht) und auch unter realen Bedingungen gemessen werden (Metalloxide bei 200-400 °C, Normaldruck, feuchter Luft und mit Testgasen).
Die meisten Operando Messungen können intern durchgeführt werden.
Im Fall von Metalloxiden beinhaltet dies
In Zusammenarbeit mit der ETH Zürich und dem Karlsruher Institut für Technologie (KIT) werden auch regelmäßig XAS Messungen an der europäischen Synchrotron Strahlungsanlage in Grenoble durchgeführt.
Mehr Information über operando Untersuchungen an SMOX auf den Seiten der AG Weimar.
Im Fall der Polymere sind die internen Messungen:
Mehr Information über operando Untersuchungen an Polymeren auf den Seiten der AG Weimar.
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