1. College of Materials, Xiamen University, Xiamen 361005, China
2. Shenzhen Research Institute of Xiamen University, Shenzhen 518000, China
3. College of Optical and Electronic Technology, China Jiliang University, Hangzhou, Zhejiang 310018, China
4. Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan