September 2010The SEM images show microstructured platinum electrodes on Yttria-stabilized zirconia (YSZ) substrates. Because of the topography of the electrode (and the materials properties) platinum appears in light grey and YSZ in dark grey. Using photolithography it is possible to prepare different structures in the micrometer scale. Firstly, a negative of the desired structure is made out of the photoresist on the YSZ substrate. Secondly, this substrate is coated with platinum by pulsed laser deposition (PLD). In the last step the photoresist is removed. In the case of platinum/YSZ electrodes the structuring is used to obtain a well defined three phase boundary length in order to attain better understanding of the oxygen exchange kinetics via electrochemical measurements. Pictures submitted by J. Neumeier and C. Bachmannhttps://www.uni-giessen.de/en/faculties/f08/departments/physchem/janek/gallerypotm/gallery-of-pictures-from-2010/september-2010/viewhttps://www.uni-giessen.de/@@site-logo/logo.png
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September 2010
The SEM images show microstructured platinum electrodes on Yttria-stabilized zirconia (YSZ) substrates. Because of the topography of the electrode (and the materials properties) platinum appears in light grey and YSZ in dark grey. Using photolithography it is possible to prepare different structures in the micrometer scale. Firstly, a negative of the desired structure is made out of the photoresist on the YSZ substrate. Secondly, this substrate is coated with platinum by pulsed laser deposition (PLD). In the last step the photoresist is removed. In the case of platinum/YSZ electrodes the structuring is used to obtain a well defined three phase boundary length in order to attain better understanding of the oxygen exchange kinetics via electrochemical measurements. Pictures submitted by J. Neumeier and C. Bachmann
