English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Metal nanoparticles are the most frequently used nanostructures inplasmonics. However, besides nanoparticles, metal nanowires feature severaladvantages for applications. Their elongation offers a larger interactionvolume, their resonances can reach higher quality factors, and their modestructure provides better coupling into integrated hybrid dielectric-plasmoniccircuits. It is crucial though, to control the distance of the wire to asupporting substrate, to another metal layer or to active materials withsub-nanometer precision. A dielectric coating can be utilized for distancecontrol, but it must not degrade the plasmonic properties. In this paper, weintroduce a controlled synthesis and coating approach for silver nanowires tofulfill these demands. We synthesize and characterize silver nanowires ofaround 70 nm in diameter. These nanowires are coated with nm-sized silicashells using a modified St\"ober method to achieve a homogeneous and smoothsurface quality. We use transmission electron microscopy, dark-field microscopyand electron-energy loss spectroscopy to study morphology and plasmonicresonances of individual nanowires and quantify the influence of the silicacoating. Thorough numerical simulations support the experimental findingsshowing that the coating does not deteriorate the plasmonic properties and thusintroduce silver nanowires as usable building blocks for integrated hybridplasmonic systems.

Silver nanowires with optimized silica coating as versatile plasmonic resonators