ArticleScientific reports2020
Plasmonic coupling in closed-packed ordered gallium nanoparticles.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Plasmonics of non-noble metals.RSC advances · 2026Review
- Superlattice Architectures for Advancing Photothermal Catalysis: Mechanisms and Applications.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Review
- Plasmonic Response to Liquid-Solid Phase Transition in Individual Gallium Nanoparticles.The journal of physical chemistry letters · 2025Article
- Plasmonic Properties of Individual Gallium Nanoparticles.The journal of physical chemistry letters · 2023Article
- Recent Advances in Liquid Metal Photonics: Technologies and Applications.Optical materials express · 2023Article
- Advances in Plasmonic Sensing at the NIR-A Review.Sensors (Basel, Switzerland) · 2021Review
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plasmonic gallium (Ga) nanoparticles (NPs) are well known to exhibit good performance in numerous applications such as surface enhanced fluorescence and Raman spectroscopy or biosensing. However, to reach the optimal optical performance, the strength of the localized surface plasmon resonances (LSPRs) must be enhanced particularly by suitable narrowing the NP size distribution among other factors. With this purpose, our last work demonstrated the production of hexagonal ordered arrays of Ga NPs by using templates of aluminium (Al) shallow pit arrays, whose LSPRs were observed in the VIS region. The quantitative analysis of the optical properties by spectroscopic ellipsometry confirmed an outstanding improvement of the LSPR intensity and full width at half maximum (FWHM) due to the imposed ordering. Here, by engineering the template dimensions, and therefore by tuning Ga NPs size, we expand the LSPRs of the Ga NPs to cover a wider range of the electromagnetic spectrum from the UV to the IR regions. More interestingly, the factors that cause this optical performance improvement are studied with the universal plasmon ruler equation, supported with discrete dipole approximation simulations. The results allow us to conclude that the plasmonic coupling between NPs originated in the ordered systems is the main cause for the optimized optical response.
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Registered trials
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