1. Anhui Province Key Laboratory of Optoelectric Materials Science and Technology, Department of Physics, Anhui Normal University, Wuhu, Anhui 241000, China
2. CAS Key Laboratory of Materials for Energy Conversion, School of Chemistry and Materials Sciences and CAS Center for Excellence in Nanoscience, and Hefei National Laboratory of Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
3. School of Physics, The University of Sydney, Sydney, New South Wales 2006, Australia
4. National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China
5. Department of Chemistry, University of Nebraska—Lincoln, Lincoln, Nebraska 68588, United States
6. Department of Chemical & Biomolecular Engineering and Department of Mechanical and Materials Engineering, University of Nebraska—Lincoln, Lincoln, Nebraska 68588, United States
7. Collaborative Innovation Center of Chemistry for Energy Materials, University of Science and Technology of China, Hefei, Anhui 230026, China