1. College of mathematics and Physics, Ningde Normal University, Ningde 352100, China
2. College of Physics and Energy, Fujian Normal University, Fujian Provincial Solar Energy Conversion and Energy Storage Engineering Technology Research Center, Fuzhou 350117, China
3. College of Chemistry and Materials, Ningde Normal University, Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde 352100, China