[1
]Department of Physics, 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
]Institute of Materials Research, Tsinghua Shenzhen International Graduate School,
Shenzhen, Guangdong 518055, China
[4
]Center for 2-Dimensional and Layered Materials, The Pennsylvania State University,
University Park, Pennsylvania 16802, United States
[5
]Department of Material Science and Engineering, The Pennsylvania State University,
University Park, Pennsylvania 16802, United States
[6
]Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania
16802, United States
[7
]Department of Solid State Physics, Faculty of Physics and Applied Informatics, University
of Lodz, Pomorska 149/153, Lodz 90-236, Poland
[8
]Department of Physics, University of Washington, Seattle, Washington 98195, United
States
[9
]Department of Engineering Science and Mechanics, Pennsylvania State University, University
Park, Pennsylvania 16802, United States
[10
]Department of Materials Science and Engineering, National University of Singapore,
9 Engineering Drive, Singapore 117456, Singapore
[11
]Texas Materials Institute and Department of Mechanical Engineering, The University
of Texas at Austin, Austin, Texas 78712, United States
[12
]Imec, Kapeldreef 75, Heverlee 3001, Belgium
[13
]Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21287, United
States
[14
]nanotech@surfaces Laboratory, Empa − Swiss Federal Laboratories for Materials Science
and Technology, Dübendorf 8600, Switzerland
[15
]School of Physics and Astronomy, Monash University, Clayton, Victoria 3800, Australia
[16
]Institute of Physics, University of Münster, Wilhelm-Klemm-Str. 10, Münster 48149,
Germany
[17
]Department of Electrical and Computer Engineering & Department of Physics and Astronomy,
University of Rochester, Rochester, New York 14627, United States
[18
]Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson
AFB, Dayton, Ohio 45433, United States
[19
]Department of Microtechnology and Nanoscience, Chalmers University of Technology,
Göteborg SE-412 96, Sweden