1. Center for Nano Science and Technology
2. Department of Physics
3. Anhui Normal University
4. Wuhu, China
5. Department of Chemistry and Department Mechanics and Materials Engineering
6. CAS Key Lab of Materials for Energy Conversion
7. Department of Materials Science and Engineering
8. University of Science and Technology of China
9. Hefei, China
10. Hefei National Laboratory for Physical Sciences at the Microscale
11. University of Nebraska-Lincoln
12. Lincoln, USA