Institution: | 1. Key Laboratory of Low Dimensional Materials & Application Technology, Ministry of Education, Faculty of Materials, Optoelectronics and Physics, Xiangtan University, Xiangtan 411105 (P.R. China);2. Institute for Frontier Materials, Deakin University, Geelong, Victoria 3217 (Australia);3. State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (P.R. China) |