Quantum transport through polycyclic hydrocarbon molecules: Green's function approach

TL;DR

This paper investigates quantum transport in polycyclic hydrocarbon molecules connected to metallic electrodes using Green's function and tight-binding models, focusing on coupling strength and quantum interference effects.

Contribution

It introduces a parametric Green's function approach with a tight-binding model to analyze electronic transport in molecular junctions.

Findings

Transport properties depend on molecule-to-electrode coupling strength.

Quantum interference significantly influences conductance.

The model provides insights into molecular electronic behavior.

Abstract

Quantum transport properties through single polycyclic hydrocarbon molecules attached to two metallic electrodes are studied by the use of Green's function technique. A parametric approach based on the tight-binding model is introduced to investigate the electronic transport through such molecular bridge systems. The transport properties are discussed in the aspects of (a) molecule-to-electrode coupling strength and (b) quantum interference effect.