1. Fraunhofer Institute for Surface Engineering and Thin Films Bienroder Weg 54E 38108 Braunschweig Germany
2. Institute for Semiconductor TechnologyTU Braunschweig Hans‐Sommer‐Strasse 66 38106 Braunschweig Germany
3. Fraunhofer Institute for Mechanics of Materials IWM Wöhlerstraße 11 79108 Freiburg Germany
4. Department d'ElectrònicaUniversitat de Barcelona c/Martí Franquès 1 08028 Barcelona Spain
5. Institute of Nanoscience and NanotechnologyUniversitat de Barcelona (IN2UB) c/Martí Franquès 1 08028 Barcelona Spain
6. Department of Electronic and Computer EngineeringThe Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong S.A.R., China
7. School of Chemistry and Chemical EngineeringJiangsu University Xuefu Road 301 212013 Zhenjiang China