1. Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM); Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM); Nanjing Tech University (NanjingTech); 30 South Puzhu Road Nanjing 211816 P. R. China
2. School of Chemical and Biomedical Engineering; Nanyang Technological University; 62 Nanyang Drive Singapore 637459 Singapore
3. School of Physical Science and Technology; Lanzhou University; Lanzhou Gansu 730000 P. R. China
4. Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM); Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM); Nanjing University of Posts and Telecommunications (NUPT); 9 Wenyuan Road Nanjing 210023 P. R. China
5. Shaanxi Institute of Flexible Electronics (SIFE); Northwestern Polytechnical University; 127 West Youyi Road Xi'an 710072 P. R. China