Current-voltage characteristics of tunneling molecular junctions for off-resonance injection

Vladimiro Mujica; Mark A. Ratner

doi:10.1016/S0301-0104(00)00394-3

Current-voltage characteristics of tunneling molecular junctions for off-resonance injection

Vladimiro Mujica, Mark A. Ratner

Research output: Contribution to journal › Article › peer-review

58 Scopus citations

Abstract

An analytical expression is obtained for the I-V curves for a tight-binding model of a molecule-metal junction for off-resonance injection. The derivation takes into account a self-consistent determination of the voltage that leads to a spatial pattern where the voltage drop occurs at the molecule-wire interface. The relevance of this model for electron transfer reactions and molecular conductance is assessed. It leads to a striking power law dependence of the current on the voltage, while preserving the exponential length dependence of either the conductance or the reaction rate.

Original language	English (US)
Pages (from-to)	365-370
Number of pages	6
Journal	Chemical Physics
Volume	264
Issue number	3
DOIs	https://doi.org/10.1016/S0301-0104(00)00394-3
State	Published - Mar 1 2001
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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title = "Current-voltage characteristics of tunneling molecular junctions for off-resonance injection",

abstract = "An analytical expression is obtained for the I-V curves for a tight-binding model of a molecule-metal junction for off-resonance injection. The derivation takes into account a self-consistent determination of the voltage that leads to a spatial pattern where the voltage drop occurs at the molecule-wire interface. The relevance of this model for electron transfer reactions and molecular conductance is assessed. It leads to a striking power law dependence of the current on the voltage, while preserving the exponential length dependence of either the conductance or the reaction rate.",

author = "Vladimiro Mujica and Ratner, {Mark A.}",

note = "Funding Information: We thank the chemistry divisions of the NSF, the ONR and the DoD/MURI program for partial support. We also thank A. Nitzan, N. Rampi and A. Burin for helpful discussions. Collaboration between Caracas and Evanston is supported by NSF-Conicit Proyecto de Grupo G-97000741. ",

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T1 - Current-voltage characteristics of tunneling molecular junctions for off-resonance injection

AU - Mujica, Vladimiro

AU - Ratner, Mark A.

N1 - Funding Information: We thank the chemistry divisions of the NSF, the ONR and the DoD/MURI program for partial support. We also thank A. Nitzan, N. Rampi and A. Burin for helpful discussions. Collaboration between Caracas and Evanston is supported by NSF-Conicit Proyecto de Grupo G-97000741.

PY - 2001/3/1

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N2 - An analytical expression is obtained for the I-V curves for a tight-binding model of a molecule-metal junction for off-resonance injection. The derivation takes into account a self-consistent determination of the voltage that leads to a spatial pattern where the voltage drop occurs at the molecule-wire interface. The relevance of this model for electron transfer reactions and molecular conductance is assessed. It leads to a striking power law dependence of the current on the voltage, while preserving the exponential length dependence of either the conductance or the reaction rate.

AB - An analytical expression is obtained for the I-V curves for a tight-binding model of a molecule-metal junction for off-resonance injection. The derivation takes into account a self-consistent determination of the voltage that leads to a spatial pattern where the voltage drop occurs at the molecule-wire interface. The relevance of this model for electron transfer reactions and molecular conductance is assessed. It leads to a striking power law dependence of the current on the voltage, while preserving the exponential length dependence of either the conductance or the reaction rate.

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SN - 0301-0104

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Current-voltage characteristics of tunneling molecular junctions for off-resonance injection

Abstract

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