1. Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials School of Electronic Science and Engineering Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 China
2. National Laboratory of Solid State Microstructures School of Physics Nanjing University Nanjing 210093 China
3. Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 China
4. Information Materials and Intelligent Sensing Laboratory of Anhui Province Institutes of Physical Science and Information Technology Anhui University Hefei 230601 China
5. School of Science Nanjing University of Posts and Telecommunications Nanjing 210023 China
6. National Laboratory of Solid State Microstructures Department of Materials Science and Engineering Nanjing University Nanjing 210093 China
7. Department of Physics Xiamen University Xiamen 316005 China