Relationship between Device Performance and Grain Boundary Structural Configuration in a Solar Cell Based on Multicrystalline SiGe
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- Usami Noritaka
- Institute for Materials Research (IMR), Tohoku University
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- Pan Wugen
- Institute for Materials Research (IMR), Tohoku University
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- Fujiwara Kozo
- Institute for Materials Research (IMR), Tohoku University
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- Ujihara Toru
- Institute for Materials Research (IMR), Tohoku University
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- Sazaki Gen
- Institute for Materials Research (IMR), Tohoku University
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- Nakajima Kazuo
- Institute for Materials Research (IMR), Tohoku University
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抄録
The grain boundary character distribution of multicrystalline SiGe (mc-SiGe) solar cells with microscopic compositional distribution was revealed to have a significant effect on the photovoltaic performance of solar cells. This was clarified by comparing the photovoltaic performance of small-area (≈0.02 cm2) solar cells fabricated in a large-area solar cell with their local structures. With increasing fraction of random grain boundaries in a small-area solar cell, the conversion efficiency was found to decrease. On the other hand, Σ3 grain boundaries are found to be dominant in a solar cell with good performance. These results suggest that the development of a crystal growth technique that fully controls the grain boundary character distribution is the key to improving the conversion efficiency of the solar cell based on multicrystalline semiconductors.
収録刊行物
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 43 (2B), L250-L252, 2004
The Japan Society of Applied Physics
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詳細情報 詳細情報について
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- CRID
- 1390001206263801728
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- NII論文ID
- 10012039322
- 210000057138
- 130004531738
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- NII書誌ID
- AA11906093
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- ISSN
- 13474065
- 00214922
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- NDL書誌ID
- 6858012
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可