1. Department of Photonics, Izmir Institute of Technology, 35430 Izmir, Turkey
2. Department of Physics, Bilkent University, 06800 Ankara, Turkey
3. Advanced Microelectronic Center Aachen, AMO GmbH, Otto-Blumenthal-Strasse 25, 52074 Aachen, Germany
4. Chair of Electronic Devices, RWTH, Aachen University, 52074 Aachen, Germany
5. ASELSAN Research Center, Ankara, Turkey
6. Department of Mechanical Engineering, University of Turkish Aeronautical Association, 06790 Ankara, Turkey
7. School of Materials and National Graphene Institute, University of Manchester, Oxford Rd., Manchester M13 9PL, U.K.