1. State Key Laboratory
of Alternate Electrical Power System with Renewable Energy Sources,
Beijing Key Laboratory of Novel Thin Film Solar Cells, North China Electric Power University, Beijing 102206, China
2. CAS Key Laboratory of Nanosystem and Hierarchical
Fabrication, National Center for Nanoscience and Technology, Beijing 100190, China
3. NAAM Research Group,
Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia