1. Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
2. 2D Crystal Consortium Material Innovation Platform, Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
3. Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37923, United States
4. Paul-Drude-Institut für Festkörperelektronik, Leibniz-Institut im Forschungsverbund Berlin e.V., Berlin 10117, Germany