1. Department of Mechanical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
2. Department of Mechanical Engineering, Boğaziçi University, Bebek, Istanbul 34342, Turkey
3. Nanoscale Sciences Department, Sandia National Laboratories, Albuquerque, New Mexico 87185, USA
4. Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio 45433, USA
5. Microsanj, LLC, Santa Clara, California 95051, USA
6. School of Electronic and Electrical Engineering, Hongik University, Seoul 04066, South Korea