1. Key Lab of Optoelectronic Technology and Intelligent Control of Education Ministry
2. Lanzhou Jiaotong University
3. Lanzhou
4. China
5. Institute of Polymer Optoelectronic Materials and Devices
6. State Key Laboratory of Luminescent Materials and Devices
7. South China University of Technology
8. Guangzhou 510640
9. College of Chemical and Biological Engineering
10. Lanzhou 730070