1. Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
2. University of Chinese Academy of Sciences, Beijing 100049, P.R. China
3. College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350117, China
4. Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, P. R. China