1. School of Materials and Energy and Chongqing Key Lab for Advanced Materials and Clean Energies of Technologies Southwest University No. 2 Tiansheng Road Chongqing 400715 P. R. China
2. School of Chemistry Chemical Engineering and Life Science and State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan Hubei 430070 P. R. China
3. Key Laboratory for Photonic and Electronic Bandgap Materials Ministry of Education School of Physics and Electronic Engineering Harbin Normal University Harbin 150025 China