Jump to main content
Jump to site search

Issue 12, 2013
Previous Article Next Article

Surface plasmon coupling in end-to-end linked gold nanorod dimers and trimers

Author affiliations

Abstract

Colloidal gold nanorods were aligned end-to-end via dithiol coupling. The scattering properties of the resultant nanostructures were investigated at the single particle level by combining dark-field microscopy and high resolution scanning electron microscopy. The longitudinal surface plasmon resonance of end-to-end coupled Au nanorods exhibited a red-shift as the number of rods in the chain increased. The nanostructures exhibited polarization-dependent optical properties, due to selective excitation of collective bonding and anti-bonding modes. The surface plasmon peak energy was not strongly dependent on the angle of rod–sphere–rod trimers. The experimental scattering spectra were compared with the results obtained from theoretical calculations using the Finite Element Method (FEM) and found to be in good agreement.

Graphical abstract: Surface plasmon coupling in end-to-end linked gold nanorod dimers and trimers

Back to tab navigation

Supplementary files

Publication details

The article was received on 23 Dec 2012, accepted on 06 Feb 2013 and first published on 25 Feb 2013


Article type: Paper
DOI: 10.1039/C3CP44657C
Phys. Chem. Chem. Phys., 2013,15, 4258-4264

  •   Request permissions

    Surface plasmon coupling in end-to-end linked gold nanorod dimers and trimers

    J. Kumar, X. Wei, S. Barrow, A. M. Funston, K. G. Thomas and P. Mulvaney, Phys. Chem. Chem. Phys., 2013, 15, 4258
    DOI: 10.1039/C3CP44657C

Search articles by author

Spotlight

Advertisements