1. Key Laboratory of Optoelectronic Materials Chemistry and Physics , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350003 , China , Graduate School of Chinese Academy of Science, Beijing 100037 , China
2. Key Laboratory of Optoelectronic Materials Chemistry and Physics , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350003 , China
3. Key Laboratory of Optoelectronic Materials Chemistry and Physics , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350003 , China ;, Email: wgf@ms.fjirsm.ac.cn