1. Center for Advanced Optoelectronic Functional Materials Research, and, Key Laboratory for UV Emitting Materials and Technology of Ministry of Education, National Demonstration Center for Experimental Physics Education, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
2. Department of Biomedical Engineering and Chemical Engineering, Syracuse University, Syracuse, New York 13244, USA
3. Key Laboratory of Molecular Epigenetics Ministry of Education, Institute of Genetics and Cytology, Northeast Normal University, Changchun 130024, China