1. International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, PR China
2. School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, PR China
3. State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, PR China
4. Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, PR China