1. Information Materials and Intelligent Sensing Laboratory of Anhui Province, School of Integrated Circuits, Anhui University, No. 111 Jiulong Road, Hefei 230601, Anhui Province, People's Republic of China
2. Suzhou R & D center of East China Institute of optoelectronic integrated devices, No. 89 Longshan Road, Suzhou 215163, Jiangsu Province, People's Republic of China