ArticleThe journal of physical chemistry. C, Nanomaterials and interfaces2026
Plasmonic Properties of Icosahedral-Seeded Gold Nanostars.
Article in The journal of physical chemistry. C, Nanomaterials and interfaces, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Electron-Donating Benzenethiols Direct Rapid Formation of Plasmonic Gold Nanoflowers.Small (Weinheim an der Bergstrasse, Germany) · 2026Article
- Composition-Dependent SERS Responses of Structurally Related Dyes on Inkjet-Printed Paper Substrates with Gold and Silver Triangular Nanoprisms.ACS omega · 2026Article
- Essential Role of Icosahedral Symmetry in the 3D Shape of AuAg Plasmonic Nanostars With High Aspect-Ratio Legs.Small (Weinheim an der Bergstrasse, Germany) · 2026Article
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Authors and funding
5 authors.
Funding
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Abstract
Gold nanostars (AuNSs) exhibit rich plasmonic responses that are highly sensitive to the number, orientation, and relative length of their legs. Here, we use the boundary element method to investigate the optical properties of experimentally realistic AuNSs grown from icosahedral seeds. The simulated extinction spectra reveal three main plasmonic resonances: a high-energy, radial-like mode with charge oscillations from the core to the leg tips (mode #1, 700-900 nm), an intermediate mode (mode #2, ∼1000-1200 nm) that emerges when a shorter leg is present, and a low-energy dipolar mode (mode #3, ∼1300 nm) dominated by coupling between oppositely oriented legs relative to the core. Charge-density maps show that modes #1 and #2 arise from hybridization between the single-short-leg plasmon and the collective resonance of the legs originated from the same plane of the icosahedral core. Electron energy-loss spectroscopy simulations confirmed the radial-like nature of this collective mode. Near-field calculations show tip-localized SERS enhancement factors up to ∼10
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Registered trials
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