1. School of Material Science
2. Japan Advanced Institute of Science and Technology
3. Ishikawa 923-1292
4. Japan
5. Cucullus Inc.
6. Faculty of Symbiotic Systems Science
7. Fukushima University
8. Fukushima 960-1296
9. Energy System Division
10. Advanced PV Technology Group
11. Panasonic Corporation
12. Osaka 597-0094