December 2012The picture shows a light (bottom) and a confocal (top) microscopic image of a tungsten layer deposited on quartz glass using pulsed laser deposition. The thin layers, produced under vacuum in the PLD chamber, fold after a short time in air as shown in the two images. The contact between the tungsten layer and the quartz substrate is apparently not sufficient after deposition. As substrate and layer cool down the tungsten layer contracts resulting in the observed folds, which are approximately 3 µm high. (Picture submitted by Matthias Kleine-Boymann and Bjoern Luerßen.)https://www.uni-giessen.de/en/faculties/f08/departments/physchem/janek/gallerypotm/gallery-of-pictures-from-2012/pom1212/viewhttps://www.uni-giessen.de/@@site-logo/logo.png
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December 2012
The picture shows a light (bottom) and a confocal (top) microscopic image of a tungsten layer deposited on quartz glass using pulsed laser deposition. The thin layers, produced under vacuum in the PLD chamber, fold after a short time in air as shown in the two images. The contact between the tungsten layer and the quartz substrate is apparently not sufficient after deposition. As substrate and layer cool down the tungsten layer contracts resulting in the observed folds, which are approximately 3 µm high. (Picture submitted by Matthias Kleine-Boymann and Bjoern Luerßen.)
