1. Institute of Semiconductor Technology; Technische Universität Braunschweig; 38106 Braunschweig Germany
2. Department of Electronics; University of Barcelona; 08028 Barcelona Spain
3. Laboratory for Emerging Nanometrology; Technische Universität Braunschweig; 38106 Braunschweig Germany
4. Fraunhofer Institute for Mechanics of Materials (IWM); 79108 Freiburg Germany
5. Department of Advanced Materials for Energy Applications; Catalonia Institute for Energy Research (IREC); 08930 Barcelona Spain
6. Institute of Energy Research and Physical Technologies; Technical University Clausthal; 38678 Clausthal Germany