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The electrical conduction through thiolate self-assembled monolayers (SAMs) of different alkyl chain lengths formed on gold surfaces are studied and phenoxy terminated alkanethiols are found to form high quality SAMs with perfect insulating properties. The characteristics of metal-insulator-metal (MIM) structures formed with these SAMs are simulated according to theoretical tunneling methods for electrical conductivity through thin organic layers.

Author(s): Marcus Halik (corresponding author) [1]; Hagen Klauk [1]; Ute Zschieschang [1]; Günter Schmid [1]; Christine Dehm [1]; Markus Schütz [2]; Steffen Maisch [2]; Franz Effenberger [2]; Markus Brunnbauer [3]; [...]

Abstract: Oscillations in redox potential and chemiluminescence of the H2O2–KSCN–CuSO4–NaOH system in the presence of luminol were examined. Parts of the mechanism proposed in the previous studies were evaluated by substitution of SCN− with CN−. The amplitude of the chemiluminescent oscillations was found to be strongly dependent on the initial luminol concentrations. In addition, the time-series ARMA (2;1)-analysis with Box–Jenkins algorithm were used to simulate the system and the result is well in accordance with the observed oscillations. [ABSTRACT FROM AUTHOR]