1. Institute of Electromagnetics and Acoustics, School of Electronic Science and Engineering, Xiamen University, Xiamen 361102, China
2. Department of Electronic Science, Fujian Engineering Research Center for Solid-State Lighting, Xiamen University, Xiamen 361102, China
3. State Key Laboratory of Physical Chemistry of Solid Surface, Xiamen University, Xiamen 361102, China
4. Institute of Flexible Electronics (IFE, Future Technologies), Xiamen University, Xiamen 361102, China
5. Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen University, Xiamen 361102, China