1. State Key Lab of Power Systems
2. Department of Thermal Engineering
3. Tsinghua-BP Clean Energy Center
4. Tsinghua University
5. Beijing
6. State Key Lab of Quantum Opt. & Quantum Opt. Devices
7. Shanxi Univ.
8. Taiyuan
9. China
10. Taiyuan Amethyst Technology Co., Ltd.
11. Taiyuan 030006