Journal
SUPERLATTICES AND MICROSTRUCTURES
Volume 28, Issue 4, Pages 289-303Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1006/spmi.2000.0916
Keywords
molecular electronics; thiols; isocyanide; scanning tunneling microscopy
Categories
Ask authors/readers for more resources
Four families of conjugated molecules, containing between one and three phenyl rings and having both thiol (-SH) and isocyanide (-NC) end groups, have been synthesized and assembled as monolayers on hat Au(111) substrates. The conductance spectra G (V) for these molecular wires were systematically measured in UHV conditions using scanning tunneling microscope techniques. The measured conductance spectra for the molecules having thiol end groups are compared to a recent theory for molecular conduction. The favorable comparison indicates that the important properties influencing the conductance of short, conjugated molecular wires having thiol end groups and forming self-assembled monolayers on a Au(111) surface have been successfully identified. The isocyanide molecules reveal a shift in Fermi level of the molecule as a function of phenyl ring number that is opposite to that observed for the thiol-terminated molecules. The trends in molecular conductance determined from this systematic study are summarized and discussed and provide insight into the role played by bonding end groups in electronic conduction. (C) 2000 Academic Press.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available