1. Key Laboratory of Novel Thin Film Solar
Cells, Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, AnHui 230031, P. R. China
2. Key Laboratory of Optoelectronic Materials
Chemistry and Physics, Fujian Institute of Research on the Structure
of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
3. Shandong Provincial Key Laboratory of Chemical
Energy Storage and Novel Cell Technology, School of Chemistry and
Chemical Engineering, Liaocheng University, Liaocheng 252059, P. R. China
4. School of Renewable Energy, North China Electric Power University, Beijing 102206, P. R. China