Fast Assembly of Gold Nanoparticles in Large-Area 2D Nanogrids Using a One-Step, Near-Infrared Radiation-Assisted Evaporation Process

ACS Nano
Andre UtgenanntJoseph L Keddie

Abstract

When fabricating photonic crystals from suspensions in volatile liquids using the horizontal deposition method, the conventional approach is to evaporate slowly to increase the time for particles to settle in an ordered, periodic close-packed structure. Here, we show that the greatest ordering of 10 nm aqueous gold nanoparticles (AuNPs) in a template of larger spherical polymer particles (mean diameter of 338 nm) is achieved with very fast water evaporation rates obtained with near-infrared radiative heating. Fabrication of arrays over areas of a few cm(2) takes only 7 min. The assembly process requires that the evaporation rate is fast relative to the particles' Brownian diffusion. Then a two-dimensional colloidal crystal forms at the falling surface, which acts as a sieve through which the AuNPs pass, according to our Langevin dynamics computer simulations. With sufficiently fast evaporation rates, we create a hybrid structure consisting of a two-dimensional AuNP nanoarray (or "nanogrid") on top of a three-dimensional polymer opal. The process is simple, fast, and one-step. The interplay between the optical response of the plasmonic Au nanoarray and the microstructuring of the photonic opal results in unusual optical spectra ...Continue Reading

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Citations

Nov 2, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Minmin Zhang, James R T Seddon
Oct 18, 2016·The Analyst·Chris Jeynes, Julien L Colaux
Oct 28, 2017·Soft Matter·Mu Wang, John F Brady
Aug 11, 2020·Advanced Functional Materials·Izabela JurewiczAlan B Dalton
Jan 21, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Boshen HeAndrew J Archer
Oct 4, 2020·Advances in Colloid and Interface Science·K S Kolegov, L Yu Barash
Aug 21, 2020·Journal of Colloid and Interface Science·James D TinklerIgnacio Martín-Fabiani
Mar 30, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Michael P HowardAthanassios Z Panagiotopoulos
Sep 7, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Jennifer L RussellThomas E Mallouk
May 25, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Yanfei TangShengfeng Cheng
May 3, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Oriol CusolaOrlando J Rojas
Apr 21, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Andrea Fortini, Richard P Sear

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