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. Corning Research & Development Corporation, 1 Riverfront Plaza, Corning, New York 14831, United States
3. High School Attached to Northeast Normal University, Changchun 130024, China