1. Institute of Electrical Engineering Chinese Academy of Sciences Beijing 100190 China
2. School of Electronic, Electrical and Communication Engineering University of Chinese Academy of Sciences Beijing 100049 China
3. Institute of Photo-electronic Thin Film Devices and Technology The Tianjin Key Laboratory for Photoelectronic Thin Film Devices and Technology Nankai University Tianjin 300071 China
4. Fujian Key Laboratory of Photoelectric Functional Materials Huaqiao University Xiamen Fujian 361021 China