Affiliation: | aUniversity of Applied Sciences Aargau, Steinackerstrasse 5, 5210 Windisch, Switzerland bLP3-UMR 6285 CNRS/Aix-Marseille II University, Luminy, Case 917, 13288 Marseille, France cCSEM Swiss Centre for Electronics and Microtechnology, Jaquet Droz 1, 2007 Neuchâtel, Switzerland |