Formation of plasmonic nanoparticle arrays -rules and recipes for an ordered growth
Artikel i vetenskaplig tidskrift, 2016

We review a self-assembled growth method for plasmonic nanoparticle arrays, based on glancing angle deposition. We produced ordered Ag, Au, and Cu nanoparticle arrays over large areas on different stepped oxide templates. Precise control over the final geometry can be difficult and we provide recipes to obtain macroscopically ordered structures. We discuss the influence of the adsorbate diffusion length and facet termination on the shape and size distributions of metallic nanoparticle arrays and show that an increased ad-atom mobility leads to more regular arrays of spherical nanoparticles. We also show how in-situ Reflectance Anisotropy Spectroscopy (RAS) can be used to extract indirect information on the nucleation and ripening the nanoparticles, as well as measure the plasmonic resonance. Schematics of the RAS setup used to in-situ monitor the growth of plasmonic nanoparticle arrays on stepped oxide templates.

enhanced raman-scattering

Nanoparticles

reflectance anisotropy spectroscopy

films

surface

plasmonic arrays

nanoantenna

ag

RAS

atoms

glancing angle deposition

Författare

K. Fleischer

Trinity College Dublin

O. Ualibek

Trinity College Dublin

Nazarbayev University

Ruggero Verre

Chalmers, Fysik, Bionanofotonik

I. V. Shvets

Trinity College Dublin

Physica Status Solidi (B): Basic Research

0370-1972 (ISSN) 1521-3951 (eISSN)

Vol. 253 198-205

Ämneskategorier

Fysik

Nanoteknik

DOI

10.1002/pssb.201552489