1. Chair of Nanoelectronic Materials, TU Dresden, Noethnitzer Strasse 64, 01187 Dresden, Germany
2. Center for Advancing Electronics Dresden (CfAED), 01062 Dresden, Germany
3. School of Electrical Engineering, Korea University, Seoul 136-701, Korea
4. Institute of Advanced Composite Materials, Korea Institute of Science and Technology, Wanju-gun, Joellabuk-do 55324, Korea
5. Namlab gGmbH, Noethnitzer Strasse 64, 01187 Dresden, Germany