1. Electronic Materials Group, Technische Universität Darmstadt Institute of Materials and Geo Sciences, Alarich-Weiss-Strasse 2, Darmstadt, Germany
2. MerckLab TU-Darmstadt, Darmstadt, Germany
3. Advanced Thin Film
Technology, Institute of Materials Science, Alarich-Weiss-Strasse 2, Darmstadt, Germany
4. Merck KGaA, Darmstadt, Germany