1. Department of Science EducationLaboratory of College PhysicsHunan First Normal University 1015 Fenglinsan Road Changsha 410205 China
2. Key Laboratory of Flexible Electronics (KLOFE) & Institution of Advanced Materials (IAM)Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)Nanjing Tech University (NanjingTech) 30 South Puzhu Road Nanjing 211816 China
3. Shaanxi Institute of Flexible Electronics (SIFE)Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi’an 710072 China
4. Key Laboratory for Organic Electronics & Information Displays (KLOEID)and Institute of Advanced Materials (IAM)Nanjing University of Posts and Telecommunications 9 Wenyuan Road Nanjing 210023 China