Hostname: page-component-7b7567c8c-fvjsw Total loading time: 0 Render date: 2026-11-13T22:04:05.290Z Has data issue: false hasContentIssue false
  • English
  • Français

A Simple Optical Properties Modeling of Microcrystalline Silicon by the Effective Medium Approximation Method

Published online by Cambridge University Press:  10 February 2011

Woo Yeong Cho,
Koeng Su Lim and
Hyun-Mo Cho
Woo Yeong Cho
Affiliation:
Departmtent of Electrical Engineering, KAIST, Taejon, Korea, wycho@pretty.kaist.ac.kr
Koeng Su Lim
Affiliation:
Departmtent of Electrical Engineering, KAIST, Taejon, Korea, wycho@pretty.kaist.ac.kr
Hyun-Mo Cho
Affiliation:
Department of Optics Laboratory, KRISS, Taejon, Korea
Get access

Abstract

The optical properties of microcrystalline silicon (µc-Si) were estimated using the EMA (Effective Medium Approximation) method. This modeling was based on two-phase mixture, amorphous silicon (a-Si) and crystalline silicon (c-Si) with volume fractions of fa and fc respectively. From this modeling, it could be possible to understand thatµc-Si has lower light absorption characteristics than a-Si over all solar spectrum by considering hydrogen involvement in embedded a-Si part of iic-Si and crystalline volume fraction. Also, it is proposed that p-type pe- Si is superior to n-type tic-Si because of its high optical gap of Eo4 and its low absorption coefficient spectrum shape.

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.)

Article purchase

Temporarily unavailable

References

[1] Matsuda, A., Yamasaki, S., Nakagawa, K., Okushi, H., Tanaka, K., Iizima, S., Matsumura, M. and Yamamoto, H., Jpn. J. Appl. Phys., 19 (1980) L305.Google Scholar
[2] Matsuda, A., Matsumura, M., Yamamoto, H., Imura, T., Yamasaki, S., Okushi, H., Iizima, S. and Tanaka, K., Jpn. J. Appl. Phys., 20 (1981) L183.Google Scholar
[3] Uchida, Y., Ichimura, T., Ueno, M. and Ohsawa, M., J. Phys., 42 (1981) Suppl. p. cc4–265.Google Scholar
[4] Matsuda, A., J. Non-Cry. Solids., 59&60 (1983) 767–774 Google Scholar
[5] Nishida, S., Tasaki, H., Konagai, M. and Takahashi, K., J. Appl. Phys. 58 1427 (1985).Google Scholar
[6] Furukawa, S. and Miyasato, T., Jpn. J. Appl. Phys, 27 L2207 (1988)Google Scholar
[7] Aspnes, D. E. and Teeten, J. B., Phys. Rev. B, 20 3292 (1979)Google Scholar
[8] Voutsas, A. T., Hatalis, M. K., Boyce, J. and Chiang, A., J. Appl. Phys. 78 6999 (1995)Google Scholar
[9] Forouhi, A. R. amd Bloomer, I., Phys. Rev. B, 34 7018 (1986)Google Scholar
[10] Takahashi, K. and Konagai, M., Amorphous Silicon Solar Cells, edited by F.R.D., Apps (North Oxford Academic 1986) pp. 104–105 Google Scholar