1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun 130012 China
2. School of Physics Northeast Normal University Changchun 130024 China
3. MOE Key Laboratory of New Processing Technology for Non ferrous Metals and Materials Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials School of Physical Science and Technology Guangxi University Nanning 530004 China
4. MIIT Key Laboratory of Advanced Display Material and Devices School of Materials Science and Engineering Nanjing University of Science and Technology Nanjing 210094 China