1. School of Materials Science and Engineering The Key Laboratory of Material Processing and Mold of Ministry of Education Henan Key Laboratory of Advanced Nylon Materials and Application National Center for International Joint Research of Micro‐nano Moulding Technology Zhengzhou University Zhengzhou 450001 P. R. China
2. Printed Electronics Group Research Center for Functional Materials National Institute for Materials Science (NIMS) Tsukuba Ibaraki 305‐0044 Japan
3. Printable Electronics Research Centre Suzhou Institute of Nanotech and Nano‐bionics Chinese Academy of Sciences Suzhou 215123 P. R. China
4. C‐INK Co., Ltd. Sojya‐shi Okayama 719‐1121 Japan
5. Lab of Display Material and Technology School of Electronics and Information Technology Sun Yat‐Sen University Guangdong 510275 P. R. China