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Self-Assembled-Monolayer Formation of Long Alkanedithiols in Molecular Junctions by Hylke B. Akkerman; Auke J. Kronemeijer; Paul A. van Hal; Dago M. de Leeuw; Paul W. M. Blom; Bert de Boer is a Engineering article available to read on EtoBox.
What is Self-Assembled-Monolayer Formation of Long Alkanedithiols in Molecular Junctions about?
## Abstract The orientation of alkanedithiol molecules in self‐assembled monolayers (SAMs) is of vital importance for their transport properties in molecular junctions. It is demonstrated that a too‐low concentration of long alkanedithiols in ethanol leads to the formation of looped molecules, resulting in a 50‐fold increase of the current through the SAM. X‐ray photoelectron spectroscopy measurements show that high‐concentration dithiol solutions result in a preferential standing‐up phase. To obtain an almost full standing‐up phase of 1,14‐tetradecanedithiol (C14) a 30 mM concentration in ethanol is required, whereas a 0.3 mM concentration leads to a highly looped monolayer. The conduction through the full standing‐up phase of C14 and C16 is in accordance with the exponential dependence on molecule length as obtained from shorter alkanedithiols.
Who reads Self-Assembled-Monolayer Formation of Long Alkanedithiols in Molecular Junctions?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Hylke B. Akkerman; Auke J. Kronemeijer; Paul A. van Hal; Dago M. de Leeuw; Paul W. M. Blom; Bert de Boer
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); Wiley - V C H Verlag GmbbH & Co.; Publons; Wiley (ISSN 1613-6810)
- Published
- 2008
- Language
- EN
- Field
- Engineering (Physical Sciences)