Hostname: page-component-745bb68f8f-b6zl4 Total loading time: 0 Render date: 2025-01-26T04:51:13.722Z Has data issue: false hasContentIssue false
  • English
  • Français

Improvement in Performance of A-SiGe:H Solar Cells for Multi-Junction Cells

Published online by Cambridge University Press:  01 January 1993

E. Maruyama ,
Y. Yoshimine ,
A. Terakawa ,
K. Sayama ,
K. Ninomiya ,
Y. Hishikawa ,
H. Tarui ,
S. Tsuda ,
S. Nakano  and
Y. Kuwano
E. Maruyama
Affiliation:
Functional Materials Research Center,Sanyo Electric Co., Ltd., 1-18-13 Hashiridani, Hirakata, Osaka Japan
Y. Yoshimine
Affiliation:
Functional Materials Research Center,Sanyo Electric Co., Ltd., 1-18-13 Hashiridani, Hirakata, Osaka Japan
A. Terakawa
Affiliation:
Functional Materials Research Center,Sanyo Electric Co., Ltd., 1-18-13 Hashiridani, Hirakata, Osaka Japan
K. Sayama
Affiliation:
Functional Materials Research Center,Sanyo Electric Co., Ltd., 1-18-13 Hashiridani, Hirakata, Osaka Japan
K. Ninomiya
Affiliation:
Functional Materials Research Center,Sanyo Electric Co., Ltd., 1-18-13 Hashiridani, Hirakata, Osaka Japan
Y. Hishikawa
Affiliation:
Functional Materials Research Center,Sanyo Electric Co., Ltd., 1-18-13 Hashiridani, Hirakata, Osaka Japan
H. Tarui
Affiliation:
Functional Materials Research Center,Sanyo Electric Co., Ltd., 1-18-13 Hashiridani, Hirakata, Osaka Japan
S. Tsuda
Affiliation:
Functional Materials Research Center,Sanyo Electric Co., Ltd., 1-18-13 Hashiridani, Hirakata, Osaka Japan
S. Nakano
Affiliation:
Functional Materials Research Center,Sanyo Electric Co., Ltd., 1-18-13 Hashiridani, Hirakata, Osaka Japan
Y. Kuwano
Affiliation:
Functional Materials Research Center,Sanyo Electric Co., Ltd., 1-18-13 Hashiridani, Hirakata, Osaka Japan
Get access

Abstract

The quality of a-SiGe:H film was improved by considering the effects of substrate temperature and deposition rate on film properties. Accurate measurement of the optical gap and the film composition of Si, Ge and H made it possible to formulate the optical gap using a linear function of bonded H content (CH) and Ge content (CGE). It was found for the first time that, when the optical gap is fixed to a certain value, the optimum compositions of CHAand CGe exist for high-quality a-SiGe:H. Based on these, we obtained the world's highest conversion efficiency of 3.7 % under red light (AM-1.5, 100mW/cm2 through an R65 filter which allows passage of longer wavelength (>650nm) light) for a 1cm2 a-SiGe single-junction cell. Long-term stability of the cell was also improved.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 297: Symposium A – Amorphous Silicon Technology - 1993 , 1993 , 821
Copyright
Copyright © Materials Research Society 1993

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1) Wagner, S., Chu, V., Conde, J.P. and Liu, J.Z., J. Non-Cryst. Solids 114, 453 (1989).Google Scholar
2) Mackenzie, K.D., Burnett, J.H., Eggert, J.R., Li, Y.M. and Paul, W., Phys.Rev. B 38, 6120 (1988).Google Scholar
3) Chen, L., Tauc, J., Lee, J.K. and Schiff, E.A., J. Non-Cryst. Solids 114, 585 (1989).Google Scholar
4) Hishikawa, Y., Tsuda, S., Wakisaka, K. and Kuwano, Y., to be published in J. Appl. Phys. Google Scholar
5) Hishikawa, Y., to be reported at this conferenceGoogle Scholar
6) Tsuda, S., Takahama, T., Isomura, M., Tarui, H., Nakashima, Y., Hishikawa, Y. Nakamura, N., Matsuoka, T., Nishiwaki, H., Nakano, S., Ohnishi, M. and Kuwano, Y., Jpn. J. Appl. Phys. 26, 33 (1987).Google Scholar
7) Hishikawa, Y., Okamoto, S., Wakisaka, K., Nakamura, N., Tsuda, S., Nakano, S., Ohnishi, M. and Kuwano, Y., Proc. 9th EC Photovolt. Solar Energy Conf., Freiburg, 37 (1989).Google Scholar
8) Watanabe, T., Azumi, K., Nakatani, M. and Shimada, T., Jpn. J. Appl. Phys. 29, 1419 (1990).Google Scholar
9) Bauer, G.H., Nebel, C.E., Schubert, M.B. and Schumm, G., Mater. Res. Soc. Symp. Proc. 149, 485 (1989).Google Scholar
10) Guha, S., Yang, J., Pawlikiewic, A., Glatfelter, T., Ross, R. and Ovshinsky, S.R., Con. Rec. 20th IEEE photovoltaic Specialists Conf., 79 (1988).Google Scholar