1. School of Materials Science and Engineering Changchun University of Science and Technology Changchun 130022 P. R. China
2. Jilin Provincial Science and Technology Innovation Center of Optical Materials and Chemistry Changchun University of Science and Technology Changchun 130022 P. R. China
3. Joint Sino-Russian Laboratory of Optical Materials and Chemistry Changchun University of Science and Technology Changchun 130022 P. R. China