1. State Key Laboratory of Rare Earth Resource Utilization; Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun 130022 China
2. University of the Chinese Academy of Sciences; Beijing 100049 China
3. College of Chemistry and Life Sciences; Zhejiang Normal University; Jinhua 321004 China
4. Institute for Lasers; Photonics and Biophotonics; University at Buffalo; The State University of New York; NY 14260 United States
5. School of Physical and Mathematical Sciences; Nanyang Technological University; 637371 Singapore Singapore