The ordering of the adsorbed NH3 molecules across the Si dimer rows on the Si(0 0 1) surface
- Authors
- Opti naguan Chung; Hanchul Kim; Ja-Yong Koo; Sukmin Chung
- Issue Date
- Jul-2008
- Publisher
- Elsevier BV
- Keywords
- Adsorption; Ammonia; Scanning tunneling microscopy; Silicon; Silicon nitride
- Citation
- Surface Science, v.602, no. 13, pp 69 - 73
- Pages
- 5
- Journal Title
- Surface Science
- Volume
- 602
- Number
- 13
- Start Page
- 69
- End Page
- 73
- URI
- https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/14225
- DOI
- 10.1016/j.susc.2008.04.013
- ISSN
- 0039-6028
1879-2758
- Abstract
- Scanning tunneling microscopy was used to study the adsorption behaviors of NH3 molecules across Si dimer rows on a Si(0 0 1)-2 × 1 surface, taking into account the existence of both the on-dimer (OD) and inter-dimer (ID) adsorption configurations. In the OD configuration, the dissociated NH2 and H form bonds with two Si atoms of a dimer. On the other hand, in the ID configuration, they adsorb at two Si atoms on the same side of two adjacent dimers along the dimer row. The OD configurations on the neighboring dimer rows were preferentially aligned perpendicular to the dimer rows, indicating a strong attractive interaction across the dimer rows, whereas the NH3 molecules adsorbed in the ID configuration rarely showed ordering behavior.
- Files in This Item
-
Go to Link
- Appears in
Collections - ICT융합공학부 > 응용물리전공 > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.