Role of hydrogen for microcrystalline silicon formation

被引:6
作者
Saitoh, K [1 ]
Kondo, M [1 ]
Fukawa, M [1 ]
Nishimiya, T [1 ]
Futako, W [1 ]
Shimizu, I [1 ]
Matsuda, A [1 ]
机构
[1] TFSSC Superlab, Electrotech Lab, Tsukuba, Ibaraki, Japan
来源
AMORPHOUS AND MICROCRYSTALLINE SILICON TECHNOLOGY-1998 | 1998年 / 507卷
关键词
D O I
10.1557/PROC-507-843
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The role of hydrogen atoms in the formation process of hydrogenated microcrystalline silicon (mu c-Si:H) by plasma enhanced chemical vapor deposition method has been investigated. Under the present conditions, the etching and the permeation of hydrogen atoms in the subsurface region do not cause the crystallization. The kinetics study of surface morphology and structure in the initial growth of mu c-Si:H on an atomically flat substrate indicates that the onset thickness of island coalescence reduced under mu c-Si:H formation condition. The results support the 'surface diffusion model' in which the surface diffusion of film precursors is enhanced by the sufficient hydrogen coverage of surface and by hydrogen atom recombination energy on the growing surface of the film.
引用
收藏
页码:843 / 853
页数:11
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