S. Tsuneda et al., Tailoring of a smooth polycrystalline gold surface as a suitable anchoringsite for a self-assembled monolayer, THIN SOL FI, 339(1-2), 1999, pp. 142-147
We investigated an effective pretreatment method for a polycrystalline gold
film surface on which an ordered self-assembled monolayer (SAM) could form
. The wetting properties of the SAM surface determined by the hysteresis be
tween advancing and receding contact angles against water and hexadecane re
vealed that the ordered SAM was formed on the gold surface pretreated with
a combination of UV/ozone exposure and ethanol rinsing prior to SAM formati
on. The change in optical properties of the gold film surface was observed
by surface plasmon spectroscopy (SPS), indicating that pure ethanol rinsing
makes the gold surface smooth by removing small gold grains oxidized by UV
/ozone exposure. (C) 1999 Elsevier Science S.A. All rights reserved.