Abstract
We show by scanning tunneling microscopy (STM) imaging that native oxide growth in moist air on hydrogen terminated Si(111) 1×1 surfaces begins by continuing formation of small oxide nuclei, 10–20 Å in diameter, in the topmost Si layer. Their statistical distribution on the flat terraces points to a homogeneous nucleation process. Oxidation is extremely slow; after about 800 h only one complete monolayer is oxidized. In addition, a small number of three-dimensional oxide nuclei, several layers deep and 50–100 Å in width, are formed at step edges as a minority species, which may be related to surface defects or contaminations.
References
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Dates
Type | When |
---|---|
Created | 23 years, 1 month ago (July 26, 2002, 9:36 a.m.) |
Deposited | 1 year, 6 months ago (Feb. 2, 2024, 10:44 p.m.) |
Indexed | 3 months ago (May 27, 2025, 10:58 a.m.) |
Issued | 33 years, 5 months ago (March 16, 1992) |
Published | 33 years, 5 months ago (March 16, 1992) |
Published Print | 33 years, 5 months ago (March 16, 1992) |
@article{Neuwald_1992, title={Initial stages of native oxide growth on hydrogen passivated Si(111) surfaces studied by scanning tunneling microscopy}, volume={60}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.107325}, DOI={10.1063/1.107325}, number={11}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Neuwald, U. and Hessel, H. E. and Feltz, A. and Memmert, U. and Behm, R. J.}, year={1992}, month=mar, pages={1307–1309} }