1. The Russell Berrie Nanotechnology Institute, Technion–Israel Institute of Technology, Haifa 32000, Israel; Department of Materials Science and Engineering, Technion–Israel Institute of Technology, Haifa 32000, Israel; and Department of Electrical Engineering, Technion–Israel Institute of Technology, Haifa 32000, Israel
2. The Russell Berrie Nanotechnology Institute, Technion–Israel Institute of Technology, Haifa 32000, Israel and Department of Materials Science and Engineering, Technion–Israel Institute of Technology, Haifa 32000, Israel
3. The Russell Berrie Nanotechnology Institute, Technion–Israel Institute of Technology, Haifa 32000, Israel and Department of Electrical Engineering, Technion–Israel Institute of Technology, Haifa 32000, Israel