1. Beijing Advanced Innovation Center for Materials Genome Engineering and Department of Materials Science and Engineering College of Engineering Peking University Beijing 100871 China
2. Department of Chemistry and Chemical Biology Rutgers University Piscataway NJ 08854 USA
3. Shenzhen Engineering Center for the Fabrication of Two‐Dimensional Atomic Crystals Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen 518055 China
4. Academy for Advanced Interdisciplinary Studies Peking University Beijing 100871 China