1. 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
2. State Key Laboratory of Digital Manufacturing Equipment and Technology; Huazhong University of Science and Technology; Wuhan 430074 P. R. China
3. Wuhan Eoptics Technology Co. Ltd.; Wuhan 430075 P. R. China
4. Innovation Center for Printed Photovoltaics; South China Institute of Collaborative Innovation; Dongguan 523808 P. R. China