1. College of Chemistry and Materials Science Fujian Key Laboratory of Polymer Materials Fujian Normal University Fuzhou 350007 P. R. China
2. Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials Siyuan Laboratory Department of Physics Jinan University Guangzhou 510632 P. R. China
3. Key Laboratory of Jiangxi University for Functional Materials Chemistry College of Chemistry and Chemical Engineering Gannan Normal University Ganzhou 341000 P. R. China
4. College of Science Key Laboratory of Quantum Precision Measurement of Zhejiang Province Zhejiang University of Technology Hangzhou 310014 P. R. China