1. Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
2. University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
3. Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian, 350108, P. R. China
4. School of Applied Physics and Materials, Wuyi University, Jiangmen 529020, Guangdong Province, P. R. China