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Preserved conductance in covalently functionalized silicon nanowires

Blase, X and Fernandez-Serra, M. -V. (2008) Preserved conductance in covalently functionalized silicon nanowires. PHYSICAL REVIEW LETTERS, 100 (4).

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We study by means of ab initio simulations the Landauer conductance of covalently functionalized silicon nanowires. We show that in the case of alkyl side chains, the most common linkers, silicon nanowires remain quasiballistic over a large energy range. More reactive side molecules, such as alkenyl or phenyl conjugated radicals, amino and alkoxide groups, are less favorable as they induce resonant backscattering in the valence bands mainly. Such results provide strong support for the use of selectively functionalized nanowires in (opto)electronic devices and molecular sensors.

Item Type:Article
Subjects:Physical Science > Nanophysics
Material Science > Nanochemistry
Material Science > Nanostructured materials
ID Code:1163
Deposited By:Anuj Seth
Deposited On:16 Dec 2008 17:16
Last Modified:12 Feb 2009 17:53

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