1. Department of Materials Science and EngineeringCity University of Hong Kong 83 Tat Chee Avenue Hong Kong SAR China
2. City University of Hong Kong Shenzhen Research Institute (CityUSRI) Shenzhen 518057 China
3. College of Physics and Optoelectronic EngineeringShenzhen University Shenzhen 518060 China
4. SZU–NUS Collaborative Innovation Center for Optoelectronic Science & TechnologyInternational Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of EducationInstitute of Microscale OptoelectronicsShenzhen University Shenzhen 518060 China
5. Xiamen Institute of Rare‐Earth MaterialsHaixi InstitutesChinese Academy of Sciences Xiamen Fujian 361000 China