Quantum transport through aromatic molecules

Journal Article · Sat Dec 07 00:00:00 EST 2013 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4836895· OSTI ID:22258718

Rey-González, R. R. ^[1]; Laroze, D. ^[2]

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1. Departamento de Física, Universidad Nacional de Colombia, Bogotá D. C. (Colombia)
2. Instituto de Alta investigación, Universidad de Tarapaca, Casilla 7D Arica (Chile)

In this paper, we study the electronic transport properties through aromatic molecules connected to two semi-infinite leads. The molecules are in different geometrical configurations including arrays. Using a nearest neighbor tight-binding approach, the transport properties are analyzed into a Green's function technique within a real-space renormalization scheme. We calculate the transmission probability and the Current-Voltage characteristics as a function of a molecule-leads coupling parameter. Our results show different transport regimes for these systems, exhibiting metal-semiconductor-insulator transitions and the possibility to employ them in molecular devices.

• OSTI ID: 22258718
• Journal Information: Journal of Applied Physics, Vol. 114, Issue 21; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CONFIGURATION
COUPLING
ELECTRIC POTENTIAL
GREEN FUNCTION
MOLECULES
QUANTUM MECHANICS
RENORMALIZATION
SEMICONDUCTOR MATERIALS