TY - JOUR
T1 - Butterfly-shaped distribution of SiNx precipitates in multi-crystalline Si for solar cells
AU - Li, Jianyong
AU - Prakash, Ronit Roneel
AU - Jiptner, Karolin
AU - Chen, Jun
AU - Miyamura, Yoshiji
AU - Harada, Hirofumi
AU - Kakimoto, Koichi
AU - Ogura, Atsushi
AU - Sekiguchi, Takashi
N1 - Funding Information:
This work is supported by the New Energy and Industrial Technology Development Organization (NEDO) in Japan. Prof. M. Fukuzawa from Kyoto Institute of Technology is acknowledged for the full-view IRTM measurements. Dr. Dierre Benjamin from National Institute for Materials Science is acknowledged for fruitful discussions.
PY - 2013
Y1 - 2013
N2 - 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.
AB - 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.
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U2 - 10.1016/j.jcrysgro.2013.03.051
DO - 10.1016/j.jcrysgro.2013.03.051
M3 - Article
AN - SCOPUS:84878369086
SN - 0022-0248
VL - 377
SP - 37
EP - 42
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
ER -