1. School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, China
2. School of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan, China
3. Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Science, Shenzhen, China
4. National Institute of LED on Si Substrate, Nanchang University, Nanchang, China