Polarity switching of charge transport and thermoelectricity in self-assembled monolayer devices.
Self-assembled monolayer devices can exhibit drastically different charge-transport characteristics and thermoelectric properties despite being composed of isomeric molecules with essentially identical frontier-orbital energies. This is rationalized by the cooperative electrostatic action of local intramolecular dipoles in otherwise nonpolar species, thus revealing new challenges but also new opportunities for the targeted design of functional building blocks in future nanoelectronics.
Institut für Physik, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 6, 12489 Berlin, Germany.
David A
DA
Egger
Ferdinand
F
Rissner
Egbert
E
Zojer
Georg
G
Heimel
D004560:Electricity; D004581:Electronics; D036103:Nanotechnology; D011789:Quantum Theory; D013696:Temperature