Electronic Transport in Single Molecule Junctions: Control of the Molecule-Electrode Coupling Through Intramolecular Tunneling Barriers
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Electronic Transport in Single Molecule Junctions: Control of the Molecule-Electrode Coupling Through Intramolecular Tunneling Barriers. / Danilov, Andrey; Kubatkin, Sergey; Kafanov, Sergey; Hedegård, Per; Stuhr-Hansen, Nicolai; Moth-Poulsen, Kasper; Bjørnholm, Thomas.
In: Nano Letters, Vol. 8, 2008, p. 1-5.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Electronic Transport in Single Molecule Junctions: Control of the Molecule-Electrode Coupling Through Intramolecular Tunneling Barriers
AU - Danilov, Andrey
AU - Kubatkin, Sergey
AU - Kafanov, Sergey
AU - Hedegård, Per
AU - Stuhr-Hansen, Nicolai
AU - Moth-Poulsen, Kasper
AU - Bjørnholm, Thomas
N1 - Paper id:: DOI: 10.1021/nl071228o
PY - 2008
Y1 - 2008
N2 - We report on single molecule electron transport measurements of two oligophenylenevinylene (OPV3) derivatives placed in a nanogap between gold (Au) or lead (Pb) electrodes in a field effect transistor device. Both derivatives contain thiol end groups that allow chemical binding to the electrodes. One derivative has additional methylene groups separating the thiols from the delocalized -electron system. The insertion of methylene groups changes the open state conductance by 3-4 orders of magnitude and changes the transport mechanism from a coherent regime with finite zero-bias conductance to sequential tunneling and Coulomb blockade behavior.
AB - We report on single molecule electron transport measurements of two oligophenylenevinylene (OPV3) derivatives placed in a nanogap between gold (Au) or lead (Pb) electrodes in a field effect transistor device. Both derivatives contain thiol end groups that allow chemical binding to the electrodes. One derivative has additional methylene groups separating the thiols from the delocalized -electron system. The insertion of methylene groups changes the open state conductance by 3-4 orders of magnitude and changes the transport mechanism from a coherent regime with finite zero-bias conductance to sequential tunneling and Coulomb blockade behavior.
M3 - Journal article
VL - 8
SP - 1
EP - 5
JO - Nano Letters
JF - Nano Letters
SN - 1530-6984
ER -
ID: 2418227