Molecular three-terminal devices: fabrication and measurements.
Incorporation of a third, gate electrode in the device geometry of molecular junctions necessary to identify the transport mechanism. At present, the most popular technique fabricate three-terminal molecular devices makes use of electromigration. Although it statistical process, we show that control over the gap resistance can be obtained. A detailed analysis of the current-voltage characteristics of gaps without molecules, however, shows that they reveal features that can mistakenly be attributed to molecular transport. This observation raises questions about which gaps with molecules can be disregarded which not. We show that electrical characteristics can be controlled by the rational design of the molecular bridge and that vibrational modes probed by electrical transport are potential interest as molecular fingerprints.
van der Zant
Herre S J
HS
Kavli Institute of Nanoscience, Delft University of Technology, PO Box 5046, 2600 GA, The Netherlands. herre@qt.tn.tudelft.nl
Kervennic
Yann-Vai
YV
Poot
Menno
M
O'Neill
Kevin
K
de Groot
Zeger
Z
Thijssen
Jos M
JM
Heersche
Hubert B
HB
Stuhr-Hansen
Nicolai
N
Bjørnholm
Thomas
T
Vanmaekelbergh
Daniel
D
van Walree
Cornelis A
CA
Jenneskens
Leonardus W
LW