1. Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) Nanjing Tech University 30 South Puzhu Road Nanjing 211816 Jiangsu P. R. China
2. Jiangsu Seenbom Flexible Electronics Institute Co., Ltd. Level 2 Building 5, 6 Zhida road Nanjing Jiangsu 210061 P. R. China
3. Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China