1. School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
2. School of Physics and Materials Science, Guangzhou University, Guangzhou, Guangdong 510006, China
3. Songshan Lake Materials Laboratory, Dongguan, Guangdong 523429, China
4. MOE Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China
5. Department of Materials Science and Engineering, Peking University, Beijing 100081, China
6. Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
7. Department of Physics, Liaoning University, Shenyang 110036, China
8. BTR New Material Group Co., Ltd., Shenzhen 518107, P. R. China