1. Center for Advancing Electronics Dresden (cfaed) and Faculty of Chemistry and Food Chemistry Technische Universität Dresden 01062 Dresden Germany
2. Center for Advancing Electronics Dresden (cfaed) and Faculty of Electrical and Computer Engineering Technische Universität Dresden 01062 Dresden Germany
3. Faculty of Chemistry and Pharmacy University of Sofia 1164 Sofia Bulgaria
4. Helmholtz-Zentrum Dresden-Rossendorf Institute of Resource Ecology Leipzig Research Branch 04316 Leipzig Germany