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Aligned Linear Arrays of Crystalline Nanoparticles
A.M. Funston, D.E. Gómez, M. Karg, K.C. Vernon, T.J. Davis, P. Mulvaney:
Journal of Physical Chemistry Letters, 4, 1994-2001 (2013)
doi: 10.1021/jz400716j

Fabrication of one-dimensional arrays of crystalline nanoparticles with tunable particle size and spacing (down to 20 nm) is demonstrated. The individual nanocrystals are pentagonal prisms, and the arrays are up to 11 μm in length, with some arrays containing >50 nanocrystals. Precise particle morphology and interparticle spacing can be maintained down the array. The far-field scattering spectra of the arrays show thenear-fields of the nanocrystals are coupled. The method is fast and produces precise, welldefined, coupled plasmonic arrays with optical properties that match well to theory.

SECTION: Plasmonics, Optical Materials, and Hard Matter