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Effect of Light Exposure Conditions on the Light-Induced Degradation in Amorphous Silicon Alloy Solar Cells

Published online by Cambridge University Press:  21 February 2011

Y. Nakata
Affiliation:
Energy Conversion Laboratories, SHARP Corporation 282–1 Hajikami, Shinjo-cho, Kitakatsuragi-gun, Nara 639–21, JAPAN
A. Yokota
Affiliation:
Energy Conversion Laboratories, SHARP Corporation 282–1 Hajikami, Shinjo-cho, Kitakatsuragi-gun, Nara 639–21, JAPAN
H. Sannomiya
Affiliation:
Energy Conversion Laboratories, SHARP Corporation 282–1 Hajikami, Shinjo-cho, Kitakatsuragi-gun, Nara 639–21, JAPAN
S. Moriuchi
Affiliation:
Energy Conversion Laboratories, SHARP Corporation 282–1 Hajikami, Shinjo-cho, Kitakatsuragi-gun, Nara 639–21, JAPAN
Y. Inoue
Affiliation:
Energy Conversion Laboratories, SHARP Corporation 282–1 Hajikami, Shinjo-cho, Kitakatsuragi-gun, Nara 639–21, JAPAN
K. Nomoto
Affiliation:
Energy Conversion Laboratories, SHARP Corporation 282–1 Hajikami, Shinjo-cho, Kitakatsuragi-gun, Nara 639–21, JAPAN
M. Itoh
Affiliation:
Energy Conversion Laboratories, SHARP Corporation 282–1 Hajikami, Shinjo-cho, Kitakatsuragi-gun, Nara 639–21, JAPAN
T. Tsuji
Affiliation:
Energy Conversion Laboratories, SHARP Corporation 282–1 Hajikami, Shinjo-cho, Kitakatsuragi-gun, Nara 639–21, JAPAN
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Abstract

Light-induced changes in current-voltage characteristics of amorphous single-junction solar cells made of silicon alloys, a-SiC, a-Si, and a-SiGe have been studied systematically. The effect of the light intensity and the bias voltage on the light-induced degradation in the conversion efficiency and other photovoltaic parameters has been clarified quantitatively, and it has been shown that the light-induced degradation characteristics of the photovoltaic parameters can be described by a single function of some normalized parameters of exposure condition. Theoretical background for the experimental results is also examined and discussed by applying a defect creation model modified to an active layer of the a-Si alloy solar cells. Utilizing these analytical formula, we propose an accelerated test method by solar simulator indoor measurement instead of natural sunlight outdoor testing.

Type
Research Article
Copyright
Copyright © Materials Research Society 1991

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References

REFERENCES

1. Nomoto, K., Takeda, Y., Moriuchi, S., Sannomiya, H., Okuno, T., Yokota, A., Kaneiwa, M., Itoh, M., Yamamoto, Y., Nakata, Y., and Inoguchi, T., Proc. 4th PVSEC Sydney 85 (1989)Google Scholar
2. Moriuchi, S., Inoue, Y., Sannomiya, H., Yokota, A., Itoh, M., Nakata, Y., and Itoh, H., Proc. 21st TRRR Photovol. Spec. Conf., Orland 1449 (1990).Google Scholar
3. Sannomiya, H., Moriuchi, S., Inoue, Y., Nomoto, K., Yokota, A., Itoh, M., Nakata, Y., and Tsuji, T., Proc. 5th PVSEC Kyoto 387 (1990).Google Scholar
4. Nakata, Y., Sannomiya, H., Moriuchi, S., Yokota, A., Inoue, Y., Itoh, M., and Itoh, H., Proc. Mater. Res. Soc. 192 (1990) 25.Google Scholar
5. Bennett, M. S. and Rajan, K., J. Appl. Phys. 67 4161 (1990).CrossRefGoogle Scholar
6. Kaneiwa, M., Nomoto, K., Itoh, M., Yamamoto, Y., Nakata, Y., and Inoguchi, T., Proc. 4th PVSEC Sydney 673 (1989).Google Scholar
7. Staebler, D. L. and Wronski, C. R., Appl. Phys. Lett. 31, 292 (1977); J. Appl. Phys. 51, 3262 (1980).Google Scholar
8. Stutzmann, M., Jackson, W. B., and Tsai, C. C., Phys. Rev. B, 23, 23 (1985).Google Scholar
9. Hack, M., Guha, S., and den Boer, W., Phys. Rev. B, 33, 2512 (1986).Google Scholar
10. Redfield, D. and Bube, R. H., Appl. Phys. Lett 54, 1037 (1989).Google Scholar
11. Staebler, D. L., Crandall, R. S., and Williams, R., Appl. Phys. Lett. 39, 733 (1981).Google Scholar
12. Kobe, T., Nakata, Y., Machida, T., Yamamoto, Y., and Tsuji, T., Proc. 18th IEEE Photovol. Spec. Conf., Las Vegas 1954 (1985).Google Scholar
13. Smith, Z E and Wagner, S., Appl. Phys. Lett 46, 1078 (1985).CrossRefGoogle Scholar
14. Uchida, Y., Nishiura, M., Sakai, H., and Haruki, H., Solar Cells 9, 3 (1983).Google Scholar
15. Tsuda, S., Nakamura, N., Watanabe, K., Takahama, T., Nishiwaki, H., Ohnishi, M., and Kuwano, Y., Solar Cells 9 25 (1983).Google Scholar
16. Crandall, R. S., J. Appl. Phys. 53 3350 (1982).CrossRefGoogle Scholar
17. Swartz, G. A., J. Appl. Phys. 53 712 (1982).Google Scholar
18. Okamoto, H., Kida, H., Nonomura, S., and Hamakawa, Y., Solar Cells 8 317 (1983).Google Scholar
19. Sakata, I. and Hayashi, Y., Appl. Phys. A, 37 153 (1985).Google Scholar
20. Hack, M. and Shur, M., J. Appl. Phys. 58 997 (1985).Google Scholar