Charge transport and scaling in molecular wires

Blum, Amy Szuchmacher ; Kushmerick, James G. ; Pollack, Steven K. ; Yang, John C. ; Moore, Martin ; Naciri, Jawad ; Shashidhar, Ranganathan ; Ratna, Banahalli R. (2004) Charge transport and scaling in molecular wires The Journal of Physical Chemistry B, 108 (47). pp. 18124-18128. ISSN 1089-5647

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The scaling of conductance across metal-molecule-metal junctions consisting of self-assembled monolayers of dithiol molecular wire candidates is demonstrated through current-voltage measurements carried out by two experimental techniques. We show that scanning tunneling microscopy measurements on single molecules are correlated with crossed-wire measurements of ~103 molecules. This implies that the conductance through a group of parallel molecules is a linear superposition of the individual molecular conductance. Our results also indicate that intermolecular charge hopping does not strongly contribute to charge transport in a self-assembled monolayer, an important factor for the design of future molecular-based devices.

Item Type:Article
Source:Copyright of this article belongs to American Chemical Society.
ID Code:49497
Deposited On:20 Jul 2011 09:53
Last Modified:20 Jul 2011 09:53

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