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 language | English |
|---|---|
| Pages (from-to) | 133-137 |
| Number of pages | 5 |
| Journal | Hyperfine Interactions |
| Volume | 204 |
| Issue number | 1-3 |
| DOIs | |
| Publication status | Published - Mar 2012 |
| Externally published | Yes |
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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
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 journal › Article
}
TY - JOUR
T1 - 57Fe charge states in MC-Si solar cells under light illumination after GeV-implantation of 57Mn
AU - Yoshida, Yutaka
AU - Suzuki, Kunifumi
AU - Kobayashi, Yoshio
AU - Nagatomo, Takashi
AU - Akiyama, Yuki
AU - Yukihira, Kenichi
AU - Hayakawa, Kazuo
AU - Ueno, Hideki
AU - Yoshimi, Akihiro
AU - Nagae, Daisuke
AU - Asahi, Koichiro
AU - Langouche, Guido
PY - 2012/3
Y1 - 2012/3
N2 - 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.
AB - 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.
KW - Mn/ Fe implantation Mössbauer spectroscopy
KW - Carrier trapping
KW - Energy conversion efficiency
KW - Fe impurity
KW - Si solar cell
UR - http://www.scopus.com/inward/record.url?scp=84859595114&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84859595114&partnerID=8YFLogxK
U2 - 10.1007/s10751-011-0424-3
DO - 10.1007/s10751-011-0424-3
M3 - Article
AN - SCOPUS:84859595114
VL - 204
SP - 133
EP - 137
JO - Hyperfine Interaction
JF - Hyperfine Interaction
SN - 0304-3843
IS - 1-3
ER -