1. The Institute of Flexible Electronics (IFE, Future Technologies), Xiamen University, Xiamen 361005, China
2. Department of Health Statistics, School of Public Health, Shanxi Medical University, Taiyuan, China
3. Future Display Institute in Xiamen, Xiamen 361005, China
4. Department of Physics, Chemistry and Biology, Linköping University, Linköping, 58183, Sweden