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Molecular Conduction: Paradigms and Possibilities

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Abstract

We discuss the factors that determine the overall shape and magnitude of the current-voltage (I-V) characteristics of a variety of molecular conductors sandwiched between two metallic contacts. We analyze the individual influences of the contact geometry, the molecular chemistry, the electrostatics of the environment, and charging on molecular conduction. Current conduction depends sensitively on the experimental geometry, as well as on the theoretical model for the molecule and the contacts. Computing molecular I-V characteristics will thus require theoretical understanding on several fronts, in particular, in the scheme for calculating the molecular energy levels, as well as on the position of the contact Fermi energy relative to those levels.

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Authors and Affiliations

  1. School of Electrical and Computer Engineering, Purdue University, W. Lafayette, IN, 47907, USA

    A.W. Ghosh & S. Datta

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  1. A.W. Ghosh
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Ghosh, A., Datta, S. Molecular Conduction: Paradigms and Possibilities. Journal of Computational Electronics 1, 515–525 (2002). https://doi.org/10.1023/A:1022961608941

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