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

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    Author
    Kumar, J; Wei, X; Barrow, S; Funston, AM; Thomas, KG; Mulvaney, P
    Date
    2013-01-01
    Source Title
    PHYSICAL CHEMISTRY CHEMICAL PHYSICS
    Publisher
    ROYAL SOC CHEMISTRY
    University of Melbourne Author/s
    Mulvaney, Paul; WEI, XINGZHAN; BARROW, STEVEN
    Affiliation
    Chemistry
    Metadata
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    Document Type
    Journal Article
    Citations
    Kumar, J., Wei, X., Barrow, S., Funston, A. M., Thomas, K. G. & Mulvaney, P. (2013). Surface plasmon coupling in end-to-end linked gold nanorod dimers and trimers. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 15 (12), pp.4258-4264. https://doi.org/10.1039/c3cp44657c.
    Access Status
    This item is currently not available from this repository
    URI
    http://hdl.handle.net/11343/33286
    DOI
    10.1039/c3cp44657c
    Description

    C1 - Journal Articles Refereed

    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.
    Keywords
    Colloid and Surface Chemistry; Expanding Knowledge in the Chemical Sciences

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