1. Ningbo Institute of Materials Technology and Engineering,Zhejiang Engineering Research Center for Energy Optoelectronic Materials and Devices, Chinese Academy of Sciences,Ningbo,China,315201
2. Suzhou Institute of Nano-Tech and Nano-Bionics,Chinese Academy of Sciences,Suzhou,China,215123
3. Xiamen University,Department of Physics,Xiamen,China,361005
4. Advanced Micro-Fabrication Equipment Inc.,Shanghai,China,201201