Nucleation mechanism of microcrystalline silicon from the amorphous phase

被引:27
作者
Fujiwara, H [1 ]
Kondo, M [1 ]
Matsuda, A [1 ]
机构
[1] AIST, Tsukuba, Ibaraki 3058568, Japan
关键词
D O I
10.1016/j.jnoncrysol.2004.02.029
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Low-temperature formation (<400 degreesC) of microcrystalline silicon (muc-Si:H) using plasma-enhanced chemical vapor deposition (PECVD) has been investigated. We find that a high intrinsic stress in the hydrogenated amorphous silicon (a-Si:H) phase is essential for muc-Si:H nucleation from the amorphous phase and muc-Si:H nucleation was observed only when compressive stress inside a-Si:H exceeds similar to750 MPa, regardless of deposition temperature. Detailed studies employing real-time spectroscopic ellipsometry and infrared spectroscopy revealed the unique role of H for stress generation and muc-Si:H nucleation. In this article, based on our recent studies, we review the nucleation mechanism of muc-Si:H from the amorphous phase. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:97 / 101
页数:5
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