Highly-effective gating of single-molecule junctions: an electrochemical approach.
We report an electrochemical gating approach with ∼100% efficiency to tune the conductance of single-molecule 4,4'-bipyridine junctions using scanning-tunnelling-microscopy break junction technique. Density functional theory calculation suggests that electrochemical gating aligns molecular frontier orbitals relative to the electrode Fermi-level, switching the molecule from an off resonance state to "partial" resonance.
Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012, Bern, Switzerland. hong@dcb.unibe.ch.
Masoud
M
Baghernejad
David Zsolt
DZ
Manrique
Chen
C
Li
Thomas
T
Pope
Ulmas
U
Zhumaev
Ilya
I
Pobelov
Pavel
P
Moreno-García
Veerabhadrarao
V
Kaliginedi
Cancan
C
Huang
Wenjing
W
Hong
Colin
C
Lambert
Thomas
T
Wandlowski