1. School of Electronics and Information Technology Sun Yat‐Sen University Guangzhou 510006 China
2. State Key Laboratory of Optoelectronic Materials and Technologies Sun Yat‐Sen University HEMC Guangzhou 510006 China
3. Science and Technology on Reliability Physics and Application of Electronic Component Laboratory No.5 Electronics Research Institute of the Ministry of Industry and Information Technology Guangzhou 510610 China
4. Foshan Institute of Sun Yat‐Sen University Foshan 528225 China