1. School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
2. Guangdong Provincial Key Laboratory of Information Photonics Technology, Guangzhou 510006, People's Republic of China
3. State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, People's Republic of China
4. School of Materials Science and Engineering, Cyrus Tang Center for Sensor Materials and Applications, Zhejiang University, Hangzhou 310027, People's Republic of China
5. Wenzhou Key Laboratory of Novel Optoelectronic and Nano Materials, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, P. R. China