The role of ion-bulk interactions during high rate deposition of microcrystalline silicon by means of the multi-hole-cathode VHF plasma

被引:19
作者
Smets, A. H. M. [1 ]
Kondo, M. [1 ]
机构
[1] Natl Inst Adv Ind Sci & Technol, Res Ctr Photovolta, Tsukuba, Ibaraki 3058568, Japan
关键词
silicon; plasma deposition; microcrystallinity; FTIR measurements; Raman spectroscopy;
D O I
10.1016/j.jnoncrysol.2005.10.073
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
The high rate deposition of microcrystalline silicon (pc-Si:H) by means of the novel multi-hole-cathode very high frequency (MHC-VHF) plasma technique has been studied in the high-pressure depletion region (9.3 Torr). A distinct relationship between vacancy incorporation, the crystalline volume fraction and a qualitative measurement of the energy of the ions bombarding the substrate has been found. The observed relation is explained with the help of an ion-phase-diagram: we claim that the most energetic ions, containing at least one silicon atom, are responsible for the local amorphization of the mu c-Si:H films via the ion induced Si bulk displacement mechanism. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:937 / 940
页数:4
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