Formation of microcrystalline germanium (μc-Ge:H) films from inductively coupled plasma CVD

被引:12
作者
Okamoto, Y [1 ]
Makihara, K [1 ]
Higashi, S [1 ]
Miyazaki, S [1 ]
机构
[1] Hiroshima Univ, Grad Sch Adv Sci Matter, Higashihiroshima 7398530, Japan
关键词
ICP; mu c-Ge; high-rate deposition; crystallinity;
D O I
10.1016/j.apsusc.2004.10.060
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Inductively coupled RF plasma of H-2-diluted GeH4 gas was applied to the growth of hydrogenated microcrystalline germanium (mu c-Ge:H) films on quartz in a reactor with an external single-turn antenna placed on quartz plate window parallel to the substrate. The deposition rate, the crystallinity and the thickness of an amorphous incubation layer formed in the early stages of the film growth were evaluated as functions of GeH4 concentration, gas flow rate, substrate temperature and the distance between the antenna and the grounded substrate susceptor. We demonstrated the growth of highly crystalized Ge films at a rate as high as 0.9 nm/s at 250 degrees C using a 8.3% GeH4 diluted with H-2. (c) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:12 / 15
页数:4
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