Resonant Photoconductance of Molecular Junctions Formed in Gold Nanoparticle Arrays

Mangold, Markus A. and Calame, Michel and Mayor, Marcel and Holleitner, Alexander W.. (2011) Resonant Photoconductance of Molecular Junctions Formed in Gold Nanoparticle Arrays. Journal of the American Chemical Society, 133 (31). pp. 12185-12191.

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Official URL: http://edoc.unibas.ch/dok/A5848539

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We investigate the photoconductance properties of oligo(phenylene vinylene) (OPV) molecules in metal–molecule–metal junctions. The molecules are electrically contacted in a two-dimensional array of gold nanoparticles. The nanoparticles in such an array are separated by only few nanometers. This allows to bridge the distance between the nanoparticles with molecules considered as molecular wires such as OPV. We report on the photoconductance of electrically contacted OPV upon resonant optical excitation of the molecules. This resonant photoconductance is sublinear in laser intensity, which suggests that trap state dynamics of the optically excited charge carriers dominate the optoelectronic response.
Faculties and Departments:05 Faculty of Science > Departement Chemie > Chemie > Molecular Devices and Materials (Mayor)
UniBasel Contributors:Mayor, Marcel
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Chemical Society
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:05 Apr 2017 12:54
Deposited On:14 Sep 2012 07:02

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