Formation of (Functionalized) Monolayers and Simultaneous Surface Patterning by Scribing Silicon in the Presence of Alkyl Halides

Abstract

Alkyl monolayers on silicon are prepared by scribing silicon while it is wet with 1-chloro-, 1-bromo-, and 1-iodoalkanes. The results suggest halogen radical abstraction from 1-haloalkanes and subsequent reaction of alkyl radicals with silicon. Functionalized (bromine-terminated) monolayers are prepared using Br(CH2)4Br. Scribing in the presence and absence of oxygen suggests that oxygen competes with alkyl halides for surface sites.