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Title: Structural and optical properties of self-assembled chains of plasmonic nanocubes

Journal Article · · Nano Letters
DOI:https://doi.org/10.1021/nl502746h· OSTI ID:1182532
 [1];  [2];  [1];  [3];  [2];  [1];  [1];  [1];  [1];  [1]
  1. Univ., of Toronto, Toronto, Ontario (Canada)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)

Solution-based linear self-assembly of metal nanoparticles offers a powerful strategy for creating plasmonic polymers, which, so far, have been formed from spherical nanoparticles and cylindrical nanorods. In this paper, we report linear solution-based self-assembly of metal nanocubes (NCs), examine the structural characteristics of the NC chains, and demonstrate their advanced optical characteristics. In comparison with chains of nanospheres with similar dimensions, composition, and surface chemistry, predominant face-to-face assembly of large NCs coated with short polymer ligands led to a larger volume of hot spots in the chains, a nearly uniform E-field enhancement in the gaps between colinear NCs, and a new coupling mode for NC chains due to the formation of a Fabry–Perot resonator structure formed by face-to-face bonded NCs. The NC chains exhibited stronger surface-enhanced Raman scattering in comparison with linear assemblies of nanospheres. Finally, the experimental results were in agreement with finite difference time domain simulations.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Argonne National Laboratory (ANL), Argonne, IL (United States); Univ. of Toronto, ON (Canada)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Natural Sciences and Engineering Research Council of Canada (NSERC); Univ. of Toronto (Canada)
Grant/Contract Number:
SC00112704; AC02-06CH11357; AC02-98CH10886
OSTI ID:
1182532
Alternate ID(s):
OSTI ID: 1339160
Report Number(s):
BNL-107610-2015-JA; R&D Project: 16076; KC0403020
Journal Information:
Nano Letters, Vol. 14, Issue 11; ISSN 1530-6984
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 86 works
Citation information provided by
Web of Science

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Unusual packing of soft-shelled nanocubes journal May 2019
Colloidal Self-Assembly Concepts for Plasmonic Metasurfaces journal September 2018
Proposition and Numerical Analysis of a Plasmonic Sensing Structure of Metallo-Dielectric Grating and Silver Nano-slabs in a Metal-Insulator-Metal Configuration journal April 2018
An aligned octahedral core in a nanocage: synthesis, plasmonic, and catalytic properties journal January 2019
Aqueous synthesis of protectant-free copper nanocubes by a disproportionation reaction of Cu 2 O on synthetic saponite journal January 2018
From 1D to 3D: Tunable Sub-10 nm Gaps in Large Area Devices journal February 2016
Self-Assembly and Surface Patterning of Polyferrocenylsilane-Functionalized Gold Nanoparticles journal November 2017
Thin, Porous, and Conductive Networks of Metal Nanoparticles through Electrochemical Welding on a Liquid Metal Template journal May 2018
Creating Orientation-Independent Built-In Hot Spots in Gold Nanoframe with Multi-Breakages journal January 2019
Switchable self-assembly of Prussian blue analogs nano-tiles triggered by salt stimulus journal January 2016
Staged Surface Patterning and Self‐Assembly of Nanoparticles Functionalized with End‐Grafted Block Copolymer Ligands journal May 2019
Formation Mechanism of ZnO Nanorod Superstructures in Different Solvents journal November 2019
Staged Surface Patterning and Self‐Assembly of Nanoparticles Functionalized with End‐Grafted Block Copolymer Ligands journal May 2019
Highly monodisperse Au@Ag nanospheres: synthesis by controlled etching route and size-dependent SERS performance of their surperlattices journal March 2019
Engineering Microstructure with Evaporation-Induced Self-Assembly of Microdroplets journal May 2018
Cluster-mediated assembly enables step-growth copolymerization from binary nanoparticle mixtures with rationally designed architectures journal January 2018
Surface patterning of nanoparticles with polymer patches text January 2016