1. Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission Key Laboratory of Photosensitive Materials and Devices of Liaoning Province School of Physics and Materials Engineering Dalian Nationalities University 18 Liaohe West Road Dalian 116600 P. R. China
2. Key Laboratory for Photonic and Electronic Bandgap Materials Ministry of Education School of Physics and Electronic Engineering Harbin Normal University Harbin 150025 P. R. China
3. School of Materials Science and Engineering Zhengzhou University 100 Kexue Avenue Zhengzhou 45001 P.R. China