1. Tianjin Key Laboratory of Thin Film Electronic and Communication Devices, School of Integrated Circuit Science and Engineering, Tianjin University of Technology, Tianjin, People’s Republic of China
2. Tianjin Sanyuan Electric Power Information Technology Co., Ltd., Tianjin , People’s Republic of China
3. Tianjin Tianda Qiushi Electric Power High Technology Co., Ltd., People’s Republic of China