1. School of Microelectronics
2. Xidian University
3. Key Laboratory of Wide Band-Gap Semiconductor Materials and Devices
4. Xi’an 710071
5. China
6. Northwestern Polytechnical University
7. Xi’an 710072
8. Xi’an University of Science and Technology
9. Xi’an 710054
10. Department of Microelectronic Science and Engineering
11. Ningbo University
12. Ningbo