Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2009-10-11
Organic Electronics, Volume 8, Issue 5, October 2007, Pages 575-583 [Corrigendum: Organic Electronics, Volume 9, Issue 3, June
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
10 pages, 7 figures
Scientific paper
10.1016/j.orgel.2007.04.004
We study electron transport in polycyclic hydrocarbon molecules attached to two semi-infinite one-dimensional metallic electrodes by the use of Green's function formalism. Parametric calculations based on the tight-binding framework are given to investigate the transport properties through such molecular bridges. In this context we also discuss noise power of current fluctuations and focus our attention on the shot noise contribution to the power spectrum. The electron transport properties are significantly influenced by (a) length of the molecule, (b) molecule-electrode interface geometry and (c) molecular coupling strength to the electrodes.
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