Solvent-induced current-voltage hysteresis and negative differential resistance in molecular junctions

Dzhioev, Alan A., and Kosov, Daniel (2012) Solvent-induced current-voltage hysteresis and negative differential resistance in molecular junctions. Physical Review B, 85. 033408. pp. 1-4.

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Abstract

We consider a single molecule circuit embedded into solvent. The Born dielectric solvation model is combined with Keldysh nonequilibrium Green's functions to describe the electron-transport properties of the system. Depending on the dielectric constant, the solvent induces multiple nonequilibrium steady states with corresponding hysteresis in molecular current-voltage characteristics as well as negative differential resistance. We identify the physical range of solvent and molecular parameters where the effects are present. The position of the negative differential resistance peak can be controlled by the dielectric constant of the solvent.

Item ID: 26159
Item Type: Article (Research - C1)
ISSN: 1098-0121
Funders: Belgian Federal Government
Date Deposited: 16 Apr 2013 02:37
FoR Codes: 02 PHYSICAL SCIENCES > 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics > 020201 Atomic and Molecular Physics @ 50%
03 CHEMICAL SCIENCES > 0307 Theoretical and Computational Chemistry > 030704 Statistical Mechanics in Chemistry @ 50%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970102 Expanding Knowledge in the Physical Sciences @ 100%
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