Structure and property of directionally grown SiGe multicrystals with microscopic compositional distribution

Kozo Fujiwara, Tatsuya Takahashi, Noritaka Usami, Toru Ujihara, Gen Sazaki, Kazuo Nakajima

研究成果: Conference contribution

抄録

Mullticrystalline SiGe with microscopic compositional distributions is an attractive material for a new high efficiency solar cell because it has a possibility to absorb the near infrared light, which is transparent to Si. In this study, structural property and absorption coefficient was investigated for mc-SiGe and those were compared with mc-Si. Columnar structure for mc-SiGe was obtained using directional growth method. It was found that the preferential crystallographic orientation of mc-SiGe is {110} plane, which is different from mc-Si. By measuring the absorption coefficient, we demonstrated that the introduction of microscopic compositional distribution in mc-SiGe is an effective way to increase absorption coefficient in longer wavelength. Mc-SiGe is therefore concluded to be promising for enabling the realization of low-cost and highly efficient solar cells.

本文言語English
ホスト出版物のタイトルProceddings of the 3rd World Conference on Photovoltaic Energy Conversion
編集者K. Kurokawa, L.L. Kazmerski, B. McNeils, M. Yamaguchi, C. Wronski
ページ158-160
ページ数3
出版ステータスPublished - 2003 12月 1
イベントProceddings of the 3rd World Conference on Photovoltaic Energy Conversion - Osaka, Japan
継続期間: 2003 5月 112003 5月 18

出版物シリーズ

名前Proceedings of the 3rd World Conference on Photovoltaic Energy Conversion
A

Other

OtherProceddings of the 3rd World Conference on Photovoltaic Energy Conversion
国/地域Japan
CityOsaka
Period03/5/1103/5/18

ASJC Scopus subject areas

  • 工学(全般)

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