1. Fujian Provincial Key Laboratory of Advanced Inorganic Oxygenated Materials, College of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China
2. Fujian Science and Technology Innovation Laboratory for Optoelectronic Information, Fuzhou 350116, P. R. China
3. College of Physics and Information Engineering, Fuzhou University, Fuzhou 350116, P. R. China
4. Ångström Laboratory, Department of Chemistry, Uppsala University, Box 538, Uppsala SE-75121, Sweden