Hierarchical Assembly of Plasmonic Nanoparticles*

Hamon, Cyrille; Liz-Marzánac, Luis M.

doi:10.1201/9780429295188-20

Cited by 24 publications

(1 citation statement)

References 29 publications

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“…Precise organization of nanoparticles (NPs) in multiple dimensions and on continuous length scales would lead to collective properties 1,2 that differ from those of individual particles, providing high potentials for many applications in plasmonics, 3 photonics, 4,5 catalysis, 6 electronics 7 and biotechnology. 8 In that context, Metallic Nanoparticles (MNPs) and Quantum Dots (QDs) attract much attention due to their size tunable optical properties 9 that have wellestablished applications in numerous fields such as sensing by enhanced Raman [10][11][12] and photoluminescence spectroscopy, 13 biosensing, 14 bioimaging 15,16 and integrated quantum photonics.…”

Section: Introductionmentioning

confidence: 99%

One Strategy for Nanoparticle Assembly onto 1D, 2D, and 3D Polymer Micro and Nanostructures

Issa

Izquierdo

Merheb

et al. 2021

ACS Appl. Mater. Interfaces

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The integration of nanoparticles (NPs) into photonic devices and plasmonic sensors requires selective patterning of these NPs with fine control of their size, shape and spatial positioning. In this article, we report on a general strategy to pattern different types of NPs. This strategy involves the functionalization of photopolymers before their patterning by two-photon laser writing to fabricate micro-and nanostructures that selectively attract colloidal 2 NPs with suitable ligands, allowing their precise immobilization and organization even within complex 3D structures. Monolayers of NPs without aggregations are obtained and the surface density of NPs on the polymer surface can be controlled by changing either the time of immersion in the colloidal solution or the type of amine molecule chemically grafted on the polymer surface. Different types of NPs (gold, silver, polystyrene, iron oxide, colloidal quantum dots and nanodiamonds) of different sizes are introduced showing a potential towards nanophotonic applications. To validate the great potential of our method, we successfully demonstrate the integration of quantum dots within a gold nanocube with high spatial resolution and nanometer precision. The promise of this hybrid nano-source of light (plasmonic/polymer/QDs) as optical nanoswitch is illustrated through photoluminescence measurements under polarized exciting light.

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Section: Introductionmentioning

confidence: 99%

One Strategy for Nanoparticle Assembly onto 1D, 2D, and 3D Polymer Micro and Nanostructures

Issa

Izquierdo

Merheb

et al. 2021

ACS Appl. Mater. Interfaces

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Colloidal Lithography Meets Plasmonic Nanochemistry

Wang

Möhwald

et al. 2018

Advanced Optical Materials

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Colloidal lithography (CL) is a newly developing nanofabrication technique and can produce various nanostructures at low cost and large scale. The CL‐based nanostructures offer great performances in plasmonics, which holds a unique capability to concentrate light into subwavelength volumes. Valuable physics effects accompanied with plasmonics, such as heat generation, optical near‐field enhancement, and excitation of hot electrons have been verified to benefit chemistry reactions, leading to a new field of plasmonic nanochemistry. Starting from CL, by way of plasmonic nanostructures, toward chemistry reaction, it shows a powerful strategy to develop all these three research areas, like the silk road which has a wide profit. In this scenario, a nanoscale “silk road” from CL to plasmonic nanochemistry is presented. Recent plasmonic nanostructures fabricated via CL are summarized and are morphologically classified into multilayer, hierarchical, hollow, asymmetric, and other nanostructures. Mechanism and development of plasmonics nanochemistry are introduced. Application prospects of several unique CL‐based structures will be expected. Finally, challenges and perspectives are offered to inspire more ingenious developments of using CL in plasmonic nanochemistry.

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Robust Synthesis of Gold Nanotriangles and their Self‐Assembly into Vertical Arrays

et al. 2019

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We report an efficient, seed‐mediated method for the synthesis of gold nanotriangles (NTs) which can be used for controlled self‐assembly. The main advantage of the proposed synthetic protocol is that it relies on using stable (over the course of several days) intermediate seeds. This stability translates into increasing time efficiency of the synthesis and makes the protocol experimentally less demanding (‘fast addition’ not required, tap water can be used in the final steps) as compared to previously reported procedures, without compromising the size and shape monodispersity of the product. We demonstrate high reproducibility of the protocol in the hands of different researchers and in different laboratories. Additionally, this modified seed‐mediated method can be used to produce NTs with edge lengths between ca. 45 and 150 nm. Finally, the high ‘quality’ of NTs allows the preparation of long‐range ordered assemblies with vertically oriented building blocks, which makes them promising candidates for future optoelectronic technologies.

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Hierarchical Assembly of Plasmonic Nanoparticles*

Cited by 24 publications

References 29 publications

One Strategy for Nanoparticle Assembly onto 1D, 2D, and 3D Polymer Micro and Nanostructures

One Strategy for Nanoparticle Assembly onto 1D, 2D, and 3D Polymer Micro and Nanostructures

Colloidal Lithography Meets Plasmonic Nanochemistry

Robust Synthesis of Gold Nanotriangles and their Self‐Assembly into Vertical Arrays

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