1. Center for Molecular Systems and Organic Devices (CMSOD), Key Laboratory for Organic Electronics & Information Displays (KLOEID) and Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing 210046, China
2. Jiangsu-Singapore
Joint Research Center for Organic/Bio-Electronics and Information
Displays and Institute of Advanced Materials, Nanjing Tech. University, Nanjing 211816, China