1. Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui, 230601, People's Republic of China
2. Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, 230031, China
3. School of Materials Science and Engineering, Energy Materials and Devices Key Lab of Anhui Province for Photoelectric Conversion, Anhui University, Hefei, Anhui, 230601, People's Republic of China
4. Department of Chemistry, Norwegian University of Science and Technology (NTNU), 7491, Trondheim, Norway