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Issue 30, 2006
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Effect of composition and packing configuration on the dichroic optical properties of coinage metal nanorods

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Abstract

When nanorods of Au, Ag and some other elements are aligned with a preferred orientation with respect to light, their optical extinction characteristics become dependent on the polarization and angle of incidence of the light. This effect is explored here and it is shown that it could potentially be exploited to produce a ‘colour-change coating’. However, particle–particle interactions are also likely to occur in such coatings, with red shifting of extinction spectra occurring for end-on-end configurations of monodisperse rods, and blue shifting for side-by-side configurations. Surprisingly, the particle–particle interactions are attenuated if they are between rods of differing aspect ratios, and this offers a useful new means of control of the optical properties of coatings of nanorods.

Graphical abstract: Effect of composition and packing configuration on the dichroic optical properties of coinage metal nanorods

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Publication details

The article was received on 24 Mar 2006, accepted on 19 Jun 2006 and first published on 28 Jun 2006


Article type: Paper
DOI: 10.1039/B604333J
Citation: Phys. Chem. Chem. Phys., 2006,8, 3520-3527
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    Effect of composition and packing configuration on the dichroic optical properties of coinage metal nanorods

    M. B. Cortie, X. Xu and M. J. Ford, Phys. Chem. Chem. Phys., 2006, 8, 3520
    DOI: 10.1039/B604333J

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