Hydrogen in Si-Si bond center and platelet-like defect configurations in amorphous hydrogenated silicon

被引:18
作者
Agarwal, S
Hoex, B
van de Sanden, MCM
Maroudas, D
Aydil, ES [1 ]
机构
[1] Univ Calif Santa Barbara, Dept Chem Engn, Santa Barbara, CA 93106 USA
[2] Eindhoven Univ Technol, Dept Appl Phys, NL-5600 MB Eindhoven, Netherlands
[3] Univ Massachusetts, Dept Chem Engn, Amherst, MA 01003 USA
来源
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B | 2004年 / 22卷 / 06期
基金
美国国家科学基金会;
关键词
D O I
10.1116/1.1824191
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Hydrogen and deuterium in bond-centered (BC) and platelet-like configurations were detected in hydrogenated (and deuterated) amorphous silicon thin films deposited from SiH4 and SiD4. plasmas. Infrared absorptions due to these configurations were measured using in situ multiple total internal reflection Fourier transform infrared spectroscopy in a differential mode. where changes in the as-deposited a-Si: H(D) films were observed during D,(H,) plasma exposure. This method coupled with preferential replacement of H(D) by D(H) in BC and platelet-like configurations over the isolated bulk SiH(SiD) configurations enabled detection of these modes without interference from the strong SiH(SiD), absorptions. The Si-H(D) stretching modes for BC hydrogen and BC deuterium were observed at similar to1950 and similar to1420 cm(-1), respectively, while those for platelet-like, hydrogen and deuterium were detected at similar to 2033 and similar to 1480 cm(-1) respectively. (C) 2004 American Vacuum Society.
引用
收藏
页码:2719 / 2726
页数:8
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