1. Contribution from the Laboratory of Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, National Engineering Research Center for Optoelectronic Crystalline Materials, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, People's Republic of China, Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, and Department of Materials Physics and Chemistry, University of Science and Technology Beijing, Beijing 100083, People's Republic...