Electrical transport measurements on self-assembled organic molecular wires.
The electrical properties of supermolecular assemblies of oligo(p-phenylene vinylene) were studied. These materials self-assemble into well-defined cylindrical structures in solution with lengths in the range of 100 nm-10 microm and diameters between 5 and 200 nm. Atomic force microscopy showed that by adjusting the concentration, either individual molecular wires or a dense film could be deposited. The molecular wires showed poor electrical conduction. Several tests were performed that show that it was the molecular wires themselves, not the contacts, that limit the conductivity.
Durkut
M
M
Kavli Institute of NanoScience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft The Netherlands. mdurkut@med.tn.tudelft.nl
Mas-Torrent
M
M
Hadley
P
P
Jonkheijm
P
P
Schenning
A P H J
AP
Meijer
E W
EW
George
S
S
Ajayaghosh
A
A