1. Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University; Guangzhou 510006 P.R. China
2. Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology; Guangzhou 510640 P.R. China
3. Department of Chemistry, Virginia Tech; Blacksburg VA 24061 USA
4. Center for Energy Harvesting Materials and System (CEHMS), Virginia Tech; Blacksburg VA 24061 USA
5. Shenzhen Guohua Optoelectronics Tech. Co. Ltd; Shenzhen 518110 P.R. China
6. Academy of Shenzhen Guohua Optoelectronics; Shenzhen 518110 P.R. China