1. School of Electronics and Communication Engineering, Sun Yat-sen University, Shenzhen, China
2. School of Physics and Electronics, Hunan Normal University, Changsha, China
3. Key Laboratory of Microelectronic Devices and Circuits (MoE), School of Integrated Circuits, Peking University, Beijing, China
4. School of Materials, Sun Yat-sen University, Shenzhen, China
5. Analogue Circuits and Image Sensors, Siegen University, Siegen, Germany