Electronic transport in single molecule junctions: Control of the molecule-electrode coupling through intramolecular tunneling barriers

被引：126

作者：

Danilov, Andrey ^{[1
,2
,3
]}

Kubatkin, Sergey ^{[3
]}

Kafanov, Sergey ^{[3
]}

Hedegard, Per ^{[1
,2
]}

Stuhr-Hansen, Nicolai ^{[1
,2
]}

Moth-Poulsen, Kasper ^{[1
,2
]}

Bjornholm, Thomas ^{[1
,2
]}

机构：

[1] Univ Copenhagen, Niels Bohr Inst, Nanosci Ctr, DK-2100 Copenhagen, Denmark

[2] Univ Copenhagen, Dept Chem, Nanosci Ctr, DK-2100 Copenhagen, Denmark

[3] Chalmers, Dept Microtechnol & Nanosci, S-41296 Gothenburg, Sweden

来源：

NANO LETTERS | 2008年 / 8卷 / 01期

关键词：

D O I：

10.1021/nl071228o

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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 pi-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.

引用

页码：1 / 5

页数：5

共 35 条

[1]

AVERIN DV, 1991, SINGLE ELECT CORRELA

[2] Charge transport and scaling in molecular wires [J].

Blum, AS ;

Kushmerick, JG ;

Pollack, SK ;

Yang, JC ;

Moore, M ;

Naciri, J ;

Shashidhar, R ;

Ratna, BR .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (47) :18124-18128

[3] Nonlinear conductance in molecular devices: Molecular length dependence [J].

Crljen, Z ;

Grigoriev, A ;

Wendin, G ;

Stokbro, K .

PHYSICAL REVIEW B, 2005, 71 (16)

[4] Electron transfer dynamics of bistable single-molecule junctions [J].

Danilov, Andrey V. ;

Kubatkin, Sergey E. ;

Kafanov, Sergey G. ;

Flensberg, Karsten ;

Bjornholm, Thomas .

NANO LETTERS, 2006, 6 (10) :2184-2190

[5] Strong electronic coupling between single C60 molecules and gold electrodes prepared by quench condensation at 4 K.: A single molecule three terminal device study [J].

Danilov, AV ;

Kubatkin, SE ;

Kafanov, SG ;

Bjornholm, T .

FARADAY DISCUSSIONS, 2006, 131 :337-345

[6] Tunneling through a multigrain system: Deducing sample topology from nonlinear conductance [J].

Danilov, AV ;

Golubev, DS ;

Kubatkin, SE .

PHYSICAL REVIEW B, 2002, 65 (12) :1253121-1253129

[7] Critical roles of metal-molecule contacts in electron transport through molecular-wire junctions [J].

Grigoriev, A. ;

Skoldberg, J. ;

Wendin, G. ;

Crljen, Z. .

PHYSICAL REVIEW B, 2006, 74 (04)

[8] Three-terminal devices to examine single-molecule conductance switching [J].

Keane, Z. K. ;

Ciszek, J. W. ;

Tour, J. M. ;

Natelson, D. .

NANO LETTERS, 2006, 6 (07) :1518-1521

[9] Single-electron transistor of a single organic molecule with access to several redox states [J].

Kubatkin, S ;

Danilov, A ;

Hjort, M ;

Cornil, J ;

Brédas, JL ;

Stuhr-Hansen, N ;

Hedegård, P ;

Bjornholm, T .

NATURE, 2003, 425 (6959) :698-701

[10] Single electron transistor with a single conjugated molecule [J].

Kubatkin, S ;

Danilov, A ;

Hjort, M ;

Cornil, J ;

Brédas, JL ;

Stuhr-Hansen, N ;

Hedegård, P ;

Bjornholm, T .

CURRENT APPLIED PHYSICS, 2004, 4 (05) :554-558

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