Key Issues for the Efficiency Improvement of Silicon-Based Stacked Solar Cells

  • Yoshihiro Hamakawa
Part of the Springer Series in Photonics book series (PHOTONICS, volume 13)


Aiming for the development of next-generation solar cells having super high efficiency with low cost, a series of R&D studies on a-Si//poly or µc (microcrystalline or nanocrystalline)-Si thin-film stacked solar cells are introduced in this chapter. First, the basic concept of the multibandgap stacked solar cell and its historical background on the selection of material combinations are ex­plained with an optimum design theory. It has been shown from the results of isoenergy mapping of the material combinations that plasma-CVD-produced amorphous silicon (a-Si) for the top cell with polycrystalline silicon (poly-Si) or microcrystalline silicon (µc-Si) would be the best combination of materials in view not only of the value of energy gaps but also the abundance of natural resources with cost.


Solar Cell Efficiency Improvement Transparent Conductive Oxide Active Layer Thickness Tandem Solar Cell 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Hamakawa, Y., and Tawada, Y. (1981): Int. J. Solar Energy,1, No.1 pp.125–144, and US Patent 4, 385, 200, Aug. 30 and 5 others.Google Scholar
  2. 2.
    Hamakawa, Y., Okamoto, H., and Nitta, Y. (1979): Appl. Phys. Lett., 35 p.187 and US Patent 4, 271, 328, Jan. 2, 1981.Google Scholar
  3. 3.
    Hamakawa, Y., Matsumoto, Y., Xu, C. Y., Okuyama, M., Takakura, H., and Okamoto, H. (1986): Mater. Res. Soc. Symp. Proc., 70 p. 481.CrossRefGoogle Scholar
  4. 4.
    Okamoto, H. ( 1981, 1983 ): p. 94.Google Scholar
  5. 5.
    Hamakawa, Y., Okamoto, H., and Y. Nitta (1984): Proc. 14th IEEE PVSC p. 1074.Google Scholar
  6. 6.
    Tsuda, S., Kuwano Y., et al. (1982): Jpn. J. Appl. Phys., 21, Suppl. 21–2 p. 251.Google Scholar
  7. 7.
    Fan, J.C.C., and Palm, B.J. (1983): Solar Cells, 10 p. 81.CrossRefGoogle Scholar
  8. 8.
    Takakura, H. (1992): Jpn. J. Appl. Phys., 31 pp. 2394–2399.CrossRefGoogle Scholar
  9. 9.
    Koch, C., Ito, M., Svrcek, V., Schubert, M.B., and Werner, J.H. (2000): MRS Spring Mtg. San Fransisco, A15. 6.Google Scholar
  10. 10.
    Yang, J., Lord, K., and Guha, S. (2000): MRS Spring Mtg. San Fransisco, A15. 4.Google Scholar
  11. 11.
    Ma, W., Horiuchi, T., Okamoto, H., and Hamakawa, Y. (New Delhi, 1992 ): Tech. Digest of PVSEC-6 p. 463.Google Scholar
  12. 12.
    Ma, W., Horiuchi, T., Lim, C.C., Yoshimi, M., Okamoto, H., and Hamakawa, Y. (1993): Proc. 23rd IEEE PVSC p.338.Google Scholar
  13. 13.
    Yoshimi, M., Ma, W., Horiuchi, T., Okamoto, H., and Hamakawa, Y. (1992): MRS Spring Mtg., Symp. A p. 845.Google Scholar
  14. 14.
    Tanaka, M. Taguchi, M., Matsuyama, T., Sawada, T., Tsuda, A., Nakano, S., Hamafusa, H., and Kuwano, Y. (1992): Jpn. J. Appl. Phys. 31, p. 3518.CrossRefGoogle Scholar
  15. 15.
    Takami, A., Arimoto, S, Morikawa, H., Hamamoto, S., Ishihara, T., Kumabe, H., and Murotan, T. (Amsterdam, 1994 ): Proc. 12th EC-PVSEC p.59.Google Scholar
  16. 16.
    Kumagai, K. MITI (June, 1994 ): Report of 31st Solar Energy Tech. Promotion Committee, New Sunshine Project HQ, p. 83.Google Scholar
  17. 17.
    Matsuyama, T., Baba, T., Takahama, T., Wakisaka, K., and Tsuda, S. (1994): Optoelectron. Devices, and Techn., 9 p. 391.Google Scholar
  18. 18.
    Schropp, R.E.I., et al. (Sapporo, 1999): 11th PVSEC p.929.Google Scholar
  19. 19.
    Meier, J., et al. (Sapporo, 1999): 11th PVSEC p.221.Google Scholar
  20. 20.
    Morikawa, H., Nishimoto, Y., Naomoto, H., Kawama, Y., Takami, A., Arimoto, S., Ishihara, K., and Namba, K. (1998): Solar Energy Mater. Solar Cells 53 pp. 23–28.CrossRefGoogle Scholar
  21. 21.
    Hamakawa, Y., and Takakura, H. (2000): Proc. 28th. IEEE, Alaska pp. 766–771.Google Scholar
  22. 22.
    Shah, A., Platz, R., Fischer, D., Hof, C., Ziegler, Y., and Goerlitzer, M. (Tokyo, 1999 ): Tech. Digest of Review Meeting for Research with Overseas Country Research Inst., pp. 9–16.Google Scholar
  23. 23.
    Roca, P., and Cabarrocas, I. (1999): Abstr. 18th Int. Conf. Amorphous and Microcrystalline Semiconductors, Snowbird, p. 210.Google Scholar
  24. 24.
    Yamamoto, K., Yoshimi, M., and Tawada, Y.: Tech. Digest of WCPEC–III, Osaka, Japan (2003) S20–B9–03.Google Scholar
  25. 25.
    Fukuda, J., and Yamamoto, K. (2002): 1st PVTEC Technical Forum pp.1–5.Google Scholar
  26. 26.
    Nasuno, Y., Kondo, M., and Matsuda, A. (2001): Jpn. J. Appl. Phys., 40 p. 303.CrossRefGoogle Scholar
  27. 27.
    Ogawa, K., Saito, K., Sano, M., Sakai, A., and Matsuda, K. (2001): Tech. Digest, PVSEC-12, Jeju, Korea, pp. 343–346.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Yoshihiro Hamakawa

There are no affiliations available

Personalised recommendations