Plasmonic Nanolenses: Electrostatic Self-Assembly of Hierarchical Nanoparticle Trimers and Their Response to Optical and Electron Beam Stimuli
Source abstract
Abstract
Asymmetric nanoparticle trimers composed of particles with increasing diameter act as "plasmonic lenses" and have been predicted to exhibit ultrahigh confinement of electromagnetic energy in the space between the two smallest particles. Here we present an electrostatic self-assembly approach for creating gold nanoparticle trimers with an assembly yield of over 60%. We demonstrate that the trimer assembly leads to characteristic red-shifts and show the localization of the relevant plasmon modes by means of cathodoluminescence and electron energy loss spectroscopy. The results are analyzed in terms of surface plasmon hybridization.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Gold and Silver Nanoparticles Synthesis and Applications · Plasmonic and Surface Plasmon Research · Metamaterials and Metasurfaces Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Materials Science and Engineering, Monash University, Clayton, Victoria 3800, Australia
Melbourne Centre for Nanofabrication, Wellington Road 151, Clayton, Victoria 3168, Australia
Monash Centre for Electron Microscopy, Monash University, Clayton, Victoria 3800, Australia
School of Physics, Monash University, Clayton, Victoria 3800, Australia
DELMIC BV, Thijsseweg 11, 2629 JA, Delft, The Netherlands
Commonwealth Scientific and Industrial Research Organisation, Manufacturing, Research Way, Clayton, Victoria 3168, Australia
School of Applied Science, RMIT University, Melbourne, Victoria 3000, Australia
Funding
Australian Research Council · Commonwealth Scientific and Industrial Research Organisation
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