Single-step nonadiabatic electron tunneling models are widely used to analyze electrochemical rates through self-assembled monolayer films (SAMs). For some systems, such as nucleic acids, long-range charge transfer can occur in a "hopping" regime that involves multiple charge transfer events and intermediate states. This report describes a three-step kinetic scheme to model charge transfer in this regime. Some of the features of the three-step model are probed experimentally by changing the chemical composition of the SAM. This work uses the three-step model and a temperature dependence of the charge transfer rate to extract the charge injection barrier for a SAM composed of a 10-mer peptide nucleic acid that operates in the hopping regime. (Figure Presented).
CITATION STYLE
Yin, X., Wierzbinski, E., Lu, H., Bezer, S., De Leon, A. R., Davis, K. L., … Waldeck, D. H. (2014). A three-step kinetic model for electrochemical charge transfer in the hopping regime. Journal of Physical Chemistry A, 118(35), 7579–7589. https://doi.org/10.1021/jp502826e
Mendeley helps you to discover research relevant for your work.