S. Flink et al., Functionalization of self-assembled monolayers on glass and oxidized silicon wafers by surface reactions, J PHYS ORG, 14(7), 2001, pp. 407-415
Surface reactions were employed to introduce a variety of functional groups
in self-assembled monolayers (SAMs) on hydroxylated surfaces such as glass
and oxidized silicon wafers. The resulting layers were fully characterized
by wettability studies, ellipsometry, Brewster angle infrared and x-ray ph
otoelectron spectroscopy. UV-visible absorption and fluorescence measuremen
ts. Based on these measurements, it was concluded that the steric hindrance
of the monolayer hampered the surface reactions, which generally led to su
bmonolayer coverages. Detailed information concerning the interactions amon
gst adsorbates was obtained from fluorescence measurements. The characteris
tic excimer emission of pyrene-functionalized layers showed a large depende
nce on the solvent that was in contact with the SAM. Furthermore, efficient
energy transfer could be observed in mixed monolayers that contained both
fluorescein and lissamine groups. Copyright (C) 2001 John Wiley & Sons, Ltd
.