1. School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, P. R. China
2. Wenzhou Key Laboratory of Novel Optoelectronic and Nano Materials, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, P. R. China
3. College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
4. Zhejiang XINXINTAIJING Tech. Co. Ltd., Wenzhou 325006, P. R. China
5. Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Shanxi 030000, P. R. China