Eur. Phys. J. B 75, 71-79 (2010)
https://doi.org/10.1140/epjb/e2010-00045-2

Molecular orientation effects in gas-surface dynamical processes

¹ Renovation Center of Instruments for Science Education and Technology, Osaka University, 1-2 Machikaneyama-cho, Toyonaka, 560-0043, Osaka, Japan
² Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, 560-0043, Osaka, Japan
³ PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho Kawaguchi, 332-0012, Saitama, Japan

Corresponding author: okada@chem.sci.osaka-u.ac.jp

Received: 28 October 2009
Published online: 2 February 2010

Abstract

We report studies of chemical reactions on single crystalline Si surfaces induced by oriented molecular beams. We discuss the obtained steric effects on Si from the viewpoint of the strength of the gas-surface interaction, in comparison with the steric effects appearing on the graphite surface. Oriented molecular beams demonstrate the possibility for controlling surface chemical reactions by varying the orientation of the incident molecules. The steric effects found on Si surfaces hint at new ways of material fabrication on Si surfaces.