57Fe charge states in MC-Si solar cells under light illumination after GeV-implantation of 57Mn

Yutaka Yoshida, Kunifumi Suzuki, Yoshio Kobayashi, Takashi Nagatomo, Yuki Akiyama, Kenichi Yukihira, Kazuo Hayakawa, Hideki Ueno, Akihiro Yoshimi, Daisuke Nagae, Koichiro Asahi, Guido Langouche

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Immediately after the GeV-implantation of 57Mn nuclei produced by the RIKEN-RIBF facility, 57Mn/ 57Fe Mössbauer spectra in Si-solar cells are measured under light illumination. Comparing with the spectrum of p-type multi-crystalline-Si, the broad spectra of the solar cell under operation can be analyzed as a superposition of interstitial and substitutional Fe components with different charge states. The charge states of Fe impurities are created by the excess carrier injection followed by a directional carrier flow in the p-n junction. The present results provide us a possibility to clarify the carrier trapping process at the Fe impurities in Si-solar cells.

Original languageEnglish
Pages (from-to)133-137
Number of pages5
JournalHyperfine Interactions
Volume204
Issue number1-3
DOIs
Publication statusPublished - Mar 2012
Externally publishedYes

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implantation
Solar cells
solar cells
Lighting
illumination
Impurities
impurities
carrier injection
p-n junctions
interstitials
trapping
Crystalline materials
nuclei

Keywords

  • Mn/ Fe implantation Mössbauer spectroscopy
  • Carrier trapping
  • Energy conversion efficiency
  • Fe impurity
  • Si solar cell

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Nuclear and High Energy Physics
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry

Cite this

Yoshida, Y., Suzuki, K., Kobayashi, Y., Nagatomo, T., Akiyama, Y., Yukihira, K., ... Langouche, G. (2012). 57Fe charge states in MC-Si solar cells under light illumination after GeV-implantation of 57Mn. Hyperfine Interactions, 204(1-3), 133-137. https://doi.org/10.1007/s10751-011-0424-3

57Fe charge states in MC-Si solar cells under light illumination after GeV-implantation of 57Mn. / Yoshida, Yutaka; Suzuki, Kunifumi; Kobayashi, Yoshio; Nagatomo, Takashi; Akiyama, Yuki; Yukihira, Kenichi; Hayakawa, Kazuo; Ueno, Hideki; Yoshimi, Akihiro; Nagae, Daisuke; Asahi, Koichiro; Langouche, Guido.

In: Hyperfine Interactions, Vol. 204, No. 1-3, 03.2012, p. 133-137.

Research output: Contribution to journalArticle

Yoshida, Y, Suzuki, K, Kobayashi, Y, Nagatomo, T, Akiyama, Y, Yukihira, K, Hayakawa, K, Ueno, H, Yoshimi, A, Nagae, D, Asahi, K & Langouche, G 2012, '57Fe charge states in MC-Si solar cells under light illumination after GeV-implantation of 57Mn', Hyperfine Interactions, vol. 204, no. 1-3, pp. 133-137. https://doi.org/10.1007/s10751-011-0424-3
Yoshida Y, Suzuki K, Kobayashi Y, Nagatomo T, Akiyama Y, Yukihira K et al. 57Fe charge states in MC-Si solar cells under light illumination after GeV-implantation of 57Mn. Hyperfine Interactions. 2012 Mar;204(1-3):133-137. https://doi.org/10.1007/s10751-011-0424-3
Yoshida, Yutaka ; Suzuki, Kunifumi ; Kobayashi, Yoshio ; Nagatomo, Takashi ; Akiyama, Yuki ; Yukihira, Kenichi ; Hayakawa, Kazuo ; Ueno, Hideki ; Yoshimi, Akihiro ; Nagae, Daisuke ; Asahi, Koichiro ; Langouche, Guido. / 57Fe charge states in MC-Si solar cells under light illumination after GeV-implantation of 57Mn. In: Hyperfine Interactions. 2012 ; Vol. 204, No. 1-3. pp. 133-137.
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