1. State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
2. Center for Device Thermography and Reliability (CDTR), H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, U.K.
3. University of Science and Technology of China, Hefei 230026, China
4. School of Science, Harbin Institute of Technology, Shenzhen 518055, China
5. State Key Laboratory of Solidification Processing, School of Materials Science, Northwestern Polytechnical University, Xi’an, 710072, China
6. School of Advanced Materials and Nanotechnology, Key Laboratory of Wide Band-Gap Semiconductor Materials and Devices, Xidian University, Xi’an, 710071, China
7. School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, Arizona, AZ85287, United States