Introduction to advances in plasmonics and its applications
Ramon A. Alvarez-Puebla, Jian-Feng Li and Xing Yi Ling introduce the Nanoscale themed collection on advances in plasmonics and its applications.
Between plasmonics and surface-enhanced resonant Raman spectroscopy: toward single-molecule strong coupling at a hotspot
The purpose of this minireview is to build a bridge between two research fields: surface-enhanced resonant Raman spectroscopy (SERRS) and the branch of plasmonics treating strong coupling between plasmons and molecular excitons.
Recent advances in surface-enhanced Raman scattering-based microdevices for point-of-care diagnosis of viruses and bacteria
This minireview reports the recent advances in surface-enhanced Raman scattering (SERS)-based assay devices for the diagnosis of infectious diseases.
Self-assembly of colloidal nanoparticles into 2D arrays at water–oil interfaces: rational construction of stable SERS substrates with accessible enhancing surfaces and tailored plasmonic response
Nanoparticle self-assembly at water–oil interfaces has emerged as a convenient and efficient method to construct stable, active and reproducible plasmonic substrates for SERS. In this review we summarize the progress that has been made in this field.
Coupled plasmonic systems: controlling the plasmon dynamics and spectral modulations for molecular detection
A review on molecular detection using coupled plasmonic systems based on spectral modulations and further near-field enhancements.
Chiral surface plasmon-enhanced chiral spectroscopy: principles and applications
In this review, the development context and scientific research results of chiral surface plasmons (SPs) in recent years are classified and described in detail.
Towards a point-of-care SERS sensor for biomedical and agri-food analysis applications: a review of recent advancements
In this review, the recent advancements of SERS for biomedical, food and agricultural applications in the past 6 years are discussed. We also discuss the opportunities and challenges in the field while highlighting the technological gaps.
Electron dynamics in plasmons
The Particle-in-Cell (PIC) method for plasmons provides a mechanical, single-particle picture of plasmon resonances by tracking in time the movement of all the individual conduction electrons.
Enhancing plasmonic hot-carrier generation by strong coupling of multiple resonant modes
Plasmonic hot-carrier generation can be harnessed by the strong coupling of the cavity mode, the LSPR mode, and the gap surface plasmon polariton.
New insight into SPR modulating by two-dimensional correlation spectroscopy: the case for an Ag/ITO system
The localized surface plasmon resonance (LSPR) of Ag/indium tin oxide (ITO)@polystyrene (PS) in the visible-NIR region was dependent on the tuning of the carrier density caused by adjusting the thickness of the ITO layer.
Broadband Tamm plasmon-enhanced planar hot-electron photodetector
We propose a planar hot-electron photodetector based on broadband Tamm plasmon resonance with a full width at half maximum of 240.2 nm, promising for broadband hot electron photodetection.
Electrochemical coating of different conductive polymers on diverse plasmonic metal nanocrystals
An electrochemical approach is developed for the coating of conductive polymers on various plasmonic metal nanocrystals for active plasmonics.
Silver melamine thin film as a flexible platform for SERS analysis
The new SERS detection platform is applicable for the quick and easy formation of sensing devices for food, agriculture, and environmental science.
Purcell-enhanced photoluminescence of few-layer MoS2 transferred on gold nanostructure arrays with plasmonic resonance at the conduction band edge
Plasmonic nanostructures of Au nanotriangles and nanodisks are coupled with few-layer MoS2 inducing photoluminescence (PL) enhancement. The underlying mechanisms were investigated with the experimentally quantified enhancement factors.
Polariton waveguide modes in two-dimensional van der Waals crystals: an analytical model and correlative nano-imaging
An analytical waveguide model is developed to describe the polaritons in two-dimensional van der Waals crystals.
Gold-spiked coating of silver particles through cold nanowelding
NPs composed of a segregated alloy of Ag coated with Au are achieved through the Ostwald ripening of small Au NPs on the surface of larger Ag NPs. The produced structures benefit from the advantages of gold and silver with none of their drawbacks.
A facile wet-chemistry approach to engineer an Au-based SERS substrate and enhance sensitivity down to ppb-level detection
Post chemical engineering of crude Au nanoparticles on a soft substrate using a gentle reductant for radioactive growth to promote SERS amplification.
Introducing cobalt as a potential plasmonic candidate combining optical and magnetic functionalities within the same nanostructure
The control of magnetic properties at the nanoscale is a current topic of intense research.
Spatial distribution of active sites for plasmon-induced chemical reactions triggered by well-defined plasmon modes
The spatial distribution of plasmon induced electron transfer reactions triggered on higher order plasmon modes was visualized through polymerizations of conductive polymers. Absolute electrochemical potential of generated holes was also clarified.
Plasmonic foam platforms for air quality monitoring
A plasmonic reversible gas sensor is proposed with the design of a plasmonic foam using surface-enhanced resonance Raman scattering.
Addressing molecular optomechanical effects in nanocavity-enhanced Raman scattering beyond the single plasmonic mode
A full multimodal description of a plasmonic cavity within a continuum-field model of molecular optomechanics provides new insights into vibrational dynamics and nonlinearities of Surface-Enhanced Raman Scattering (SERS).
Intracellular optical probing with gold nanostars
The morphology of non-functionalized gold nanostars determines the surface protein structure and their interaction with the endolysosomal compartment in cells.
Introducing visible-light sensitivity into photocatalytic CeO2 nanoparticles by hybrid particle preparation exploiting plasmonic properties of gold: enhanced photoelectrocatalysis exemplified for hydrogen peroxide sensing
Enhancement of the photocatalytic current of CeO2 NPs upon their linkage to plasmonic Au NPs.
Accurate SERS monitoring of the plasmon mediated UV/visible/NIR photocatalytic and photothermal catalytic process involving Ag@carbon dots
The accurate SERS monitoring of a plasmon-mediated UV/visible/NIR photocatalytic and photothermal catalytic process on Ag@carbon dots has been demonstrated.
Plasmon-driven protodeboronation reactions in nanogaps
Hot charge carriers created by plasmons break the C–B bond of 4-mercaptophenylboronic acid, transforming it into benzenethiol in nanogaps.
A laser metallurgy route for the batch preparation of mm-scale 3D silver/graphite heteronanoclusters in air
We report a batch preparation of mm-scale 3D Ag hetero-nanoclusters which exhibit an excellent surface plasmon resonance ability via facile laser metallurgy.
Microporous silica membranes promote plasmonic nanoparticle stability for SERS detection of uranyl
Microporous silica membranes facilitate plasmonic stability of Ag@Au nanoparticles against variations in pH, ionic strength, and temperature for SERS sensing.
The moveable “hot spots” effect in an Au nanoparticles–Au plate coupled system
The excitation line dependent transformation of the coupling mode from the “particle–particle” to the “particle–surface” mode was observed using an Au nanoparticles and plate coupled system.
Low-loss aluminum epitaxial film for scalable and sustainable plasmonics: direct comparison with silver epitaxial film
The epitaxial aluminum film exhibits long plasmon lengths in the full visible region and outperforms silver in the deep blue region.
Influence of order-to-disorder transitions on the optical properties of the aluminum plasmonic metasurface
To mimic the optical influence of disorder in condensed matter, the effect of uniform disorder on the plasmonic resonances were investigated on aluminum nanoparticle arrays.
In situ surface-enhanced electronic and vibrational Raman scattering spectroscopy at metal/molecule interfaces
Both information about adsorbates and surface charges at the metal/dielectric interface were simultaneously obtained using in situ SERS.
Experimental signature of a topological quantum dot
Topological insulator nanoparticles (TINPs) host topologically protected Dirac surface states, just like their bulk counterparts.
Plasmon-induced electron injection into the large negative potential conduction band of Ga2O3 for coupling with water oxidation
The plasmonic Ga2O3 photoanode with the interfacial TiO2 modification provide both a high reduction ability and an oxidation ability.
(Gold nanorod core)/(poly(3,4-ethylene-dioxythiophene) shell) nanostructures and their monolayer arrays for plasmonic switching
(Gold nanorod core)/(poly(3,4-ethylene-dioxythiophene) shell) nanostructures are prepared. The nanostructure arrays exhibit a remarkable and reversible plasmon peak shift of about 70 nm by controlling the doping level of the polymer shell.
(Gold triangular nanoplate core)@(silver shell) nanostructures as highly sensitive and selective plasmonic nanoprobes for hydrogen sulfide detection
AuTNP@Ag nanostructures are developed as nanoprobes for hydrogen sulfide. Owing to the high refractive index sensitivity of Au TNPs and facile sulfurization of silver, AuTNP@Ag nanostructures exhibit great sensitivity to both sulfur ions and H2S gas.