1. Center of Nanomaterials for Renewable Energy (CNRE), State Key Lab of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, People’s Republic of China
2. Department of Materials Science and Engineering, and Centre for Functional Photonics (CFP), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, People’s Republic of China
3. Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, Fujian 361005, People’s Republic of China
4. Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen 361005, People’s Republic of China
5. State Key Laboratory for Mechanical Behavior of Materials & School of Microelectronics, Xi’an Jiaotong University, Xi’an 710049, People’s Republic of China
6. State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 320027, People’s Republic of China