Self-Assembly of Chiral Plasmonic Nanostructures

2016 ◽  
Vol 28 (47) ◽  
pp. 10499-10507 ◽  
Author(s):  
Xiang Lan ◽  
Qiangbin Wang
Keyword(s):  
Self Assembly ◽  
Plasmonic Nanostructures

DNA Directed Self-Assembly of Anisotropic Plasmonic Nanostructures

2011 ◽  
Vol 133 (44) ◽  
pp. 17606-17609 ◽  
Author(s):  
Suchetan Pal ◽  
Zhengtao Deng ◽  
Haining Wang ◽  
Shengli Zou ◽  
Yan Liu ◽  
...  
Keyword(s):  
Self Assembly ◽  
Plasmonic Nanostructures

Bio-inspired self-assembly of large area 3D Ag@SiO2 plasmonic nanostructures with tunable broadband light harvesting

2021 ◽  
Vol 25 ◽  
pp. 101238
Author(s):  
Pengfei Cheng ◽  
Mario Ziegler ◽  
Valentin Ripka ◽  
Dong Wang ◽  
Hongguang Wang ◽  
...  
Keyword(s):  
Self Assembly ◽  
Light Harvesting ◽  
Plasmonic Nanostructures ◽  
Large Area

Self-assembled plasmonic metamaterials

Nanophotonics ◽  
2013 ◽  
Vol 2 (3) ◽  
pp. 211-240 ◽  
Author(s):  
Stefan Mühlig ◽  
Alastair Cunningham ◽  
José Dintinger ◽  
Toralf Scharf ◽  
Thomas Bürgi ◽  
...  
Keyword(s):  
Self Assembly ◽  
Degrees Of Freedom ◽  
Building Blocks ◽  
Spatial Arrangement ◽  
Plasmonic Nanostructures ◽  
Bottom Up ◽  
Unit Cells ◽  
Amorphous Structures ◽  
Self Assembled ◽  
Novel Applications

AbstractNowadays for the sake of convenience most plasmonic nanostructures are fabricated by top-down nanofabrication technologies. This offers great degrees of freedom to tailor the geometry with unprecedented precision. However, it often causes disadvantages as well. The structures available are usually planar and periodically arranged. Therefore, bulk plasmonic structures are difficult to fabricate and the periodic arrangement causes undesired effects, e.g., strong spatial dispersion is observed in metamaterials. These limitations can be mitigated by relying on bottom-up nanofabrication technologies. There, self-assembly methods and techniques from the field of colloidal nanochemistry are used to build complex functional unit cells in solution from an ensemble of simple building blocks, i.e., in most cases plasmonic nanoparticles. Achievable structures are characterized by a high degree of nominal order only on a short-range scale. The precise spatial arrangement across larger dimensions is not possible in most cases; leading essentially to amorphous structures. Such self-assembled nanostructures require novel analytical means to describe their properties, innovative designs of functional elements that possess a desired near- and far-field response, and entail genuine nanofabrication and characterization techniques. Eventually, novel applications have to be perceived that are adapted to the specifics of the self-assembled nanostructures. This review shall document recent progress in this field of research. Emphasis is put on bottom-up amorphous metamaterials. We document the state-of-the-art but also critically assess the problems that have to be overcome.

Assembly and Optical Properties of Metal Nanoparticles

2019 ◽  
Vol 294 ◽  
pp. 3-10
Author(s):  
E.A. Dawi ◽  
A. Abdelkader
Keyword(s):  
Gold Nanoparticles ◽  
Optical Properties ◽  
Self Assembly ◽  
Silicon Oxide ◽  
Ex Situ ◽  
Visible Range ◽  
Plasmonic Nanostructures ◽  
Electromagnetic Spectrum ◽  
Force Microscopy ◽  
Atomic Force

In this paper, the deposition and optical properties of charge-stabilized gold nanoparticles on silicon oxide substrates is studied, which have been derivatised with (aminopropyl) triemethoxysilane. Monodispersed charged-stabilized colloidal gold nanoparticles with diameters between 20-150 nm were prepared and their self-assembly and optical properties on silica substrates is studied. Atomic force microscopy (AFM) is employed to investigate the nanoparticle monolayers ex situ. Analysis of AFM images provide evidence that the formation of the colloidal nanoparticle monolayers is governed by random sequential adsorption. The results indicate that the ionic strength of the suspension influences the spatial distribution of the nanoparticles. For all sizes of the Au nanoparticles tested, optical simulations of extinction coefficients made by finite-difference time domain (FDTD) indicate a resonance peak in the range of 510-600 nm wavelength of the visible range of the electromagnetic spectrum. The results indicate a simple and inexpensive approach of assembly of plasmonic nanostructures that can find applications in metamaterials and light waveguides.

scholarly journals The role of colloidal plasmonic nanostructures in organic solar cells

2016 ◽  
Vol 18 (33) ◽  
pp. 23155-23163 ◽  
Author(s):  
C. R. Singh ◽  
T. Honold ◽  
T. P. Gujar ◽  
M. Retsch ◽  
A. Fery ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Self Assembly ◽  
Au Nanoparticles ◽  
Plasmonic Nanostructures

A colloidal self-assembly concept is introduced for the fabrication of optically homogenous monolayers of plasmonic Au-nanoparticles in organic solar cells.

scholarly journals Large scale self-assembly of plasmonic nanoparticles on deformed graphene templates

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Matthew T. Gole ◽  
Zhewen Yin ◽  
Michael Cai Wang ◽  
Wayne Lin ◽  
Ziran Zhou ◽  
...  
Keyword(s):  
Self Assembly ◽  
Polymer Brushes ◽  
Large Scale ◽  
2D Materials ◽  
Plasmonic Nanoparticles ◽  
Plasmonic Nanostructures ◽  
Plasmonic Coupling ◽  
Lithographic Patterning ◽  
Assembly Method ◽  
2D Nanomaterials

AbstractHierarchical heterostructures of two-dimensional (2D) nanomaterials are versatile platforms for nanoscale optoelectronics. Further coupling of these 2D materials with plasmonic nanostructures, especially in non-close-packed morphologies, imparts new metastructural properties such as increased photosensitivity as well as spectral selectivity and range. However, the integration of plasmonic nanoparticles with 2D materials has largely been limited to lithographic patterning and/or undefined deposition of metallic structures. Here we show that colloidally synthesized zero-dimensional (0D) gold nanoparticles of various sizes can be deterministically self-assembled in highly-ordered, anisotropic, non-close-packed, multi-scale morphologies with templates designed from instability-driven, deformed 2D nanomaterials. The anisotropic plasmonic coupling of the particle arrays exhibits emergent polarization-dependent absorbance in the visible to near-IR regions. Additionally, controllable metasurface arrays of nanoparticles by functionalization with varying polymer brushes modulate the plasmonic coupling between polarization dependent and independent assemblies. This self-assembly method shows potential for bottom-up nanomanufacturing of diverse optoelectronic components and can potentially be adapted to a wide array of nanoscale 0D, 1D, and 2D materials.

scholarly journals Template-Guided Self-Assembly of Discrete Optoplasmonic Molecules and Extended Optoplasmonic Arrays

Nanophotonics ◽  
2015 ◽  
Vol 4 (3) ◽  
pp. 250-260 ◽  
Author(s):  
Björn M. Reinhard ◽  
Wonmi Ahn ◽  
Yan Hong ◽  
Svetlana V. Boriskina ◽  
Xin Zhao
Keyword(s):  
Self Assembly ◽  
Local Density ◽  
Electromagnetic Coupling ◽  
Scattered Light ◽  
Building Blocks ◽  
Hybrid Structures ◽  
Localized Surface Plasmon ◽  
Plasmonic Nanostructures ◽  
Mode Spectrum ◽  
Optical Microcavities

Abstract The integration of metallic and dielectric building blocks into optoplasmonic structures creates new electromagnetic systems in which plasmonic and photonic modes can interact in the near-, intermediate- and farfield. The morphology-dependent electromagnetic coupling between the different building blocks in these hybrid structures provides a multitude of opportunities for controlling electromagnetic fields in both spatial and frequency domain as well as for engineering the phase landscape and the local density of optical states. Control over any of these properties requires, however, rational fabrication approaches for well-defined metal-dielectric hybrid structures. Template-guided self-assembly is a versatile fabrication method capable of integrating metallic and dielectric components into discrete optoplasmonic structures, arrays, or metasurfaces. The structural flexibility provided by the approach is illustrated by two representative implementations of optoplasmonic materials discussed in this review. In optoplasmonic atoms or molecules optical microcavities (OMs) serve as whispering gallery mode resonators that provide a discrete photonic mode spectrum to interact with plasmonic nanostructures contained in the evanescent fields of the OMs. In extended hetero-nanoparticle arrays in-plane scattered light induces geometry-dependent photonic resonances that mix with the localized surface plasmon resonances of the metal nanoparticles.We characterize the fundamental electromagnetic working principles underlying both optoplasmonic approaches and review the fabrication strategies implemented to realize them.

scholarly journals Latest Novelties on Plasmonic and Non-Plasmonic Nanomaterials for SERS Sensing

Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1200 ◽  
Author(s):  
Grégory Barbillon
Keyword(s):  
Charge Transfer ◽  
Self Assembly ◽  
Spatial Organization ◽  
Bimetallic Nanoparticles ◽  
Plasmonic Nanostructures ◽  
Sers Enhancement ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Sers Sensing

An explosion in the production of substrates for surface enhanced Raman scattering (SERS) has occurred using novel designs of plasmonic nanostructures (e.g., nanoparticle self-assembly), new plasmonic materials such as bimetallic nanomaterials (e.g., Au/Ag) and hybrid nanomaterials (e.g., metal/semiconductor), and new non-plasmonic nanomaterials. The novel plasmonic nanomaterials can enable a better charge transfer or a better confinement of the electric field inducing a SERS enhancement by adjusting, for instance, the size, shape, spatial organization, nanoparticle self-assembly, and nature of nanomaterials. The new non-plasmonic nanomaterials can favor a better charge transfer caused by atom defects, thus inducing a SERS enhancement. In last two years (2019–2020), great insights in the fields of design of plasmonic nanosystems based on the nanoparticle self-assembly and new plasmonic and non-plasmonic nanomaterials were realized. This mini-review is focused on the nanoparticle self-assembly, bimetallic nanoparticles, nanomaterials based on metal-zinc oxide, and other nanomaterials based on metal oxides and metal oxide-metal for SERS sensing.

DNA-Directed Self-Assembly of Core-Satellite Plasmonic Nanostructures: A Highly Sensitive and Reproducible Near-IR SERS Sensor

2012 ◽  
Vol 23 (12) ◽  
pp. 1519-1526 ◽  
Author(s):  
Yuanhui Zheng ◽  
Thibaut Thai ◽  
Philipp Reineck ◽  
Ling Qiu ◽  
Yueming Guo ◽  
...  
Keyword(s):  
Self Assembly ◽  
Plasmonic Nanostructures ◽  
Near Ir ◽  
Highly Sensitive
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