1. Frontiers Science Center for Flexible Electronics
2. Xi’an Institute of Flexible Electronics (IFE) and Xi’an Institute of Biomedical Materials & Engineering
3. Northwestern Polytechnical University
4. Xi’an 710072
5. P. R. China
6. Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
7. Nanjing University of Posts & Telecommunications
8. Nanjing 210023