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ICAME 2011 pp 133–137Cite as

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

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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.

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Authors and Affiliations

  1. Shizuoka Institute of Science and Technology, Toyosawa 2200-2, Fukuroi-city, Shizuoka 437-8555, Japan

    Yutaka Yoshida, Yuki Akiyama, Kenichi Yukihira & Kazuo Hayakawa

  2. RIKEN Nishina Center, Wakō, Japan

    Yoshio Kobayashi, Takashi Nagatomo, Hideki Ueno & Akihiro Yoshimi

  3. Department of Physics, Tokyo Institute of Technology, Tokyo, Japan

    Kunifumi Suzuki, Daisuke Nagae & Koichiro Asahi

  4. Institute for Nuclear and Radiation Physics, Physics Department, Leuven University, Leuven, Belgium

    Guido Langouche

Authors
  1. Yutaka Yoshida
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  2. Kunifumi Suzuki
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  3. Yoshio Kobayashi
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  4. Takashi Nagatomo
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  5. Yuki Akiyama
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  6. Kenichi Yukihira
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  7. Kazuo Hayakawa
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  8. Hideki Ueno
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  9. Akihiro Yoshimi
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  10. Daisuke Nagae
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  11. Koichiro Asahi
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  12. Guido Langouche
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Corresponding author

Correspondence to Yutaka Yoshida .

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Editors and Affiliations

  1. Shizuoka Institute, Fukuroi, Japan

    Yutaka Yoshida

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Yoshida, Y. et al. (2013). 57Fe charge states in MC-Si solar cells under light illumination after GeV-implantation of 57Mn. In: Yoshida, Y. (eds) ICAME 2011. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-4762-3_18

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