1. College of Electronic Information and Optical Engineering, Nankai University, Tianjin 300350, China
2. School of Physics and Telecommunication Engineering, Zhoukou Normal University, Zhoukou 466001, China
3. Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology, Nankai University, Tianjin 300350, China
4. Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin, Tianjin 300350, China
5. Engineering Research Center of Thin Film Optoelectronics Technology, Ministry of Education, Tianjin 300350, China