Characterization of N,N' diarachidoylindigo transferred onto a surface acoustic wave device

Inger Vikholm, Hannu Helle

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)


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 languageEnglish
Pages (from-to)197-202
JournalThin Solid Films
Issue number1-2
Publication statusPublished - 1989
MoE publication typeA1 Journal article-refereed


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