1. Key Laboratory of Rubber-Plastics of Ministry of Education/Shandong Province (QUST)
2. School of Polymer Science & Engineering
3. Qingdao University of Science & Technology
4. Qingdao 266042
5. P. R. China
6. Department of Materials Science and Engineering and The Shenzhen Key laboratory for Printed Organic Electronics
7. South University of Science and Technology of China (SUSTC)
8. Shenzhen
9. China