Butterfly-shaped distribution of SiNx precipitates in multi-crystalline Si for solar cells

Jianyong Li, Ronit Roneel Prakash, Karolin Jiptner, Jun Chen, Yoshiji Miyamura, Hirofumi Harada, Koichi Kakimoto, Atsushi Ogura, Takashi Sekiguchi

研究成果: Contribution to journalArticle査読

10 被引用数 (Scopus)


This paper concerns the precipitation mechanism of SiNx impurities in multi-crystalline silicon grown with a directional solidification system. A butterfly-shaped precipitate region was found across the middle part of ingot. These precipitates showed filament-like and fiber-like shapes of several micrometers in diameter and up to several millimeters in length. These two types of precipitates exist in different areas, forming three distribution zones in the butterfly region. The precipitate growth periodically stopped at the last stage of the butterfly formation. A non-uniform convection flow model was proposed to explain the precipitation behavior at the butterfly.

ジャーナルJournal of Crystal Growth
出版ステータス出版済み - 2013

All Science Journal Classification (ASJC) codes

  • 凝縮系物理学
  • 無機化学
  • 材料化学


「Butterfly-shaped distribution of SiN<sub>x</sub> precipitates in multi-crystalline Si for solar cells」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。