Open Access Nano Express

One-dimensional silver nanostructures on single-wall carbon nanotubes

Eunice Mercado, Steven Santiago, Luis Baez, Daniel Rivera, Miguel Gonzalez, Milton E Rivera-Ramos, Madeline Leon and Miguel E Castro*

Author Affiliations

Department of Chemistry, Chemical Imaging Center, The University of Puerto Rico at Mayaguez, Mayaguez, 00682, Puerto Rico

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Nanoscale Research Letters 2011, 6:602  doi:10.1186/1556-276X-6-602

Published: 23 November 2011

Abstract

We report the synthesis and characterization of one-dimensional silver nanostructures using single-wall carbon nanotubes (SWCNT) as a template material. Transmission electron microscopy and scanning tunneling microscopy are consistent with the formation of a one-dimensional array of silver particles on SWCNT. We observe evidence for the excitation of the longitudinal silver plasmon mode in the optical absorption spectra of Ag-SWCNT dispersions, even in the lowest silver concentrations employed. The results indicate that silver deposits on SWCNT may be candidates for light-to-energy conversion through the coupling of the electric field excited in arrays of plasmonic particles.