Aligned Linear Arrays of Crystalline Nanoparticles.
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 the near-fields of the nanocrystals are coupled. The method is fast and produces precise, well-defined, coupled plasmonic arrays with optical properties that match well to theory.
†School of Chemistry, Monash University, Clayton, Victoria, 3800, Australia.
Alison M
AM
Funston
‡CSIRO, Materials Science and Engineering, Private Bag 33, Clayton, Victoria, 3168, Australia.|§Melbourne Centre for Nanofabrication, Clayton VIC 3168, Australia.
Daniel E
DE
Gómez
∥School of Chemistry and Bio21 Institute, University of Melbourne, Parkville, Victoria, 3010, Australia.
Matthias
M
Karg
⊥Applied Optics and Nanotechnology Group, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4001, Australia.
Kristy C
KC
Vernon
‡CSIRO, Materials Science and Engineering, Private Bag 33, Clayton, Victoria, 3168, Australia.|§Melbourne Centre for Nanofabrication, Clayton VIC 3168, Australia.
Timothy J
TJ
Davis
∥School of Chemistry and Bio21 Institute, University of Melbourne, Parkville, Victoria, 3010, Australia.
Paul
P
Mulvaney
nanoparticle array; optical spectra; plasmon coupling; plasmonics; silver nanoparticle; surface plasmon; waveguide