ArticleCommunications chemistry2024
Hot carriers from intra- and interband transitions in gold-silver alloy nanoparticles.
Article in Communications chemistry, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Interfacial Role of DopantNanophotonics (Berlin, Germany) · 2026Article
- Hot-Carrier Generation in Bimetallic Janus Nanoparticles.ACS nano · 2026Article
- Morphology-modified contributions of electronic transitions to the optical response of plasmonic nanoporous gold metamaterial.Nature communications · 2026Article
- On the Energy Contributions Driving Pyridine Adsorption on Silver and Gold Nanoparticles.Nanomaterials (Basel, Switzerland) · 2025Article
- Evaluation of the total antioxidant capacity of Anchusa italica retz using carbon fiber microelectrode modified by Au-Ag alloy urchin-like nanostructures.Mikrochimica acta · 2025Article
- Plasmonic Hot-Carrier Engineering at Bimetallic Nanoparticle/Semiconductor Interfaces: A Computational Perspective.Small (Weinheim an der Bergstrasse, Germany) · 2025Article
- Charting a new course with plasmon-mediated chemistry.Communications chemistry · 2024Article
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Authors and funding
4 authors.
Funding
Abstract
Hot electrons and holes generated from the decay of localised surface plasmons in metallic nanoparticles can be harnessed for applications in solar energy conversion and sensing. In this paper, we study the generation of hot carriers in large spherical gold-silver alloy nanoparticles using a recently developed atomistic modelling approach that combines a solution of Maxwell's equations with large-scale tight-binding simulations. We find that hot-carrier properties depend sensitively on the alloy composition. Specifically, nanoparticles with a large gold fraction produce hot carriers under visible light illumination while nanoparticles with a large silver fraction require higher photon energies to produce hot carriers. Moreover, most hot carriers in nanoparticles with a large gold fraction originate from interband transitions which give rise to energetic holes and 'cold' electrons near the Fermi level. Increasing the silver fraction enhances the generation rate of hot carriers from intraband transitions which produce energetic electrons and 'cold' holes. These findings demonstrate that alloy composition is a powerful tuning parameter for the design of nanoparticles for applications in solar energy conversion and sensing that require precise control of hot-carrier properties.
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