1. School of Materials Science and Engineering
2. Henan Polytechnic University
3. Jiaozuo 454003
4. P. R. China
5. Institute of Advanced Materials (IAM)
6. Nanjing Tech University (NanjingTech)
7. Nanjing 211816
8. School of Physical Science and Technology
9. Lanzhou University
10. Lanzhou 730000
11. Institute of Flexible Electronics (IFE)