1. Graduate Institute of Energy Engineering
2. National Central University
3. Tao-Yuan 32001, Taiwan
4. Dep. of Mechanical Engineering
5. Dep. of Materials Engineering
6. Ming Chi University of Technology
7. New Taipei City 24301, Taiwan
8. National Taiwan University
9. Taipei City 10617, Taiwan
10. National Nano Device Laboratories
11. Hsinchu, Taiwan
12. Department of Electrical Engineering and Computer Sciences
13. Massachusetts Institute of Technology
14. Cambridge, USA
15. Department of Nuclear Science and Engineering and Department of Materials Science and Engineering