Effective Models for Charge Transport in DNA Nanowires.

Autor: Shoseyov, Oded, Levy, Ilan, Gutierrez, Rafael, Cuniberti, Gianaurelio
Zdroj: NanoBioTechnology (978-1-58829-894-2); 2008, p107-119, 13p
Abstrakt: Rapid progress in the field of molecular electronics has led to increasing interest in DNA oligomers as possible components of electronic circuits at the nanoscale. For this, however, an understanding of charge transfer and transport mechanisms in this molecule is required. Experiments show that a large number of factors may infiuence the electronic properties of DNA. Although full first-principle approaches are the ideal tool for a theoretical characterization of the structural and electronic properties of DNA, the structural complexity of this molecule limits the usefulness of these methods. Consequently, model Hamiltonian approaches, which filter out single factors influencing charge propagation in the double helix, are highly valuable. In this chapter, we review the different DNA models that are thought to capture the influence of some of these factors. We will specifically focus on static and dynamic disorder. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index