1. College of Physics, Optoelectronics and Energy, Collaborative Innovation Center of Suzhou Nano Science and Technology, Photovoltaic Research Institute of Soochow University and Canadian Solar Inc., and Jiangsu Key Laboratory of Thin Films, Soochow University, 1 Shizi street, Suzhou 215006, China
2. SIP Dongcheng Intelligent Network Technology Co., Ltd., Industrial Park, Suzhou 215021, China