Abstract
A 77.8 MHz surface acoustic wave (SAW) device has been used to characterize the deposition of monolayers of an indigo dye substituted with two hydrophobic alkyl chains. The dye forms a monolayer with two distinct slopes, whereas a mixture of the dye with cadmium arachidate forms a monolayer typical of fatty acids. The deposition of mixed layers is homogeneous, which also can be concluded from UV-visible spectra. The surface mass density associated with each deposited monolayer agrees within 10% with that calculated from the molecular surface area. The SAW device reveals the necessity of allowing the monolayers to dry before successive deposition.
Original language | English |
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Pages (from-to) | 197-202 |
Journal | Thin Solid Films |
Volume | 178 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 1989 |
MoE publication type | A1 Journal article-refereed |