1. Laboratory for Air Pollution/Environmental Technology, Empa, Überlandstrasse 129, 8600Dübendorf, Switzerland
2. Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1−5/10, 8093Zurich, Switzerland
3. Transport at Nanoscale Interfaces Laboratory, Empa, Überlandstrasse 129, 8600Dübendorf, Switzerland
4. Alpes Lasers SA, Avenue des Pâquiers 1, 2072St-Blaise, Switzerland