1. Department of Electrical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
2. Center for Atomically Thin Multifunctional Coatings, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
3. Air Force Research Laboratory, Materials and Manufacturing Directorate, WPAFB, Dayton, Ohio 45433, United States
4. Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States