1. Beijing Institute of Nanoenergy and Nanosystems
2. Chinese Academy of Sciences
3. National Center Nanoscience and Technology (NCNST)
4. Beijing 100083
5. China
6. State Key Laboratory of Crystal Material
7. Shandong University
8. Jinan 250100
9. PR China
10. Institute of Engineering Thermodynamics
11. German Aerospace Center
12. Stuttgart 70569
13. Germany