1. Department of Materials Science and Engineering; Seoul National University; Seoul 151-744 Republic of Korea
2. Inter-university Semiconductor Research Center; College of EngineeringSeoul National University; Seoul 151-744 Republic of Korea
3. Fraunhofer IPMS-CNT; Koenigsbruecker Str. 178 01109 Dresden Germany
4. University of Applied Sciences Munich; Lothstr. 34 80335 Munich Germany
5. NaMLab gGmbH/TU Dresden; Noethnitzer Str. 64 01187 Dresden Germany