1. College of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, PR China
2. Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, PR China
3. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, PR China
4. Key Laboratory of Luminescence and Optical Information, Ministry of Education Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044, PR China