1. School of Physical Science and Technology, Northwestern Polytechnical University, Xian 710072, China
2. School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei Street, Nanjing 210094, China
3. School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan 316022, China
4. Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
5. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
6. School of Computer Science, Northwestern Polytechnical University, Xian 710072, China