ArticleJournal of the American Chemical Society2025
Triggering Photoluminescence in High-Nuclear Silver Nanoclusters via Extra Silver Atom Incorporation.
Article in Journal of the American Chemical Society, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Structural and optical properties of ligand-free noble metal nanoclusters synthesized by ns-pulsed laser ablation at the argon-water interface.Nanoscale advances · 2026Article
- Article
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Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Photoluminescence (PL) in silver (Ag) nanoclusters (NCs) is intrinsically linked to their structural architecture, yet their low quantum yield at room-temperature hinders practical applications. Although various strategies have been explored to enhance the PL efficiency of Ag NCs, their effectiveness in high-nuclear Ag NCs remains largely uncertain. Here, we demonstrate a 77-fold enhancement in room-temperature PL quantum yield by modulating both radiative and nonradiative decay pathways in high-nuclear Ag NCs. A comparative study of two anion-templated Ag NCs, differing by a single Ag atom in the outermost shell, reveals that this substitution lowers structural symmetry, thereby increasing the radiative decay rate. This structural modification is facilitated by the alterations in ligands and their coordination environment, which simultaneously suppress atomic fluctuations and reduce the nonradiative decay component. Furthermore, theoretical investigations corroborate these findings, indicating that the incorporation of an additional Ag atom modifies the electronic distribution, thereby influencing the PL characteristics and ultimately altering the emission mechanism. These insights provide a deeper understanding of the structure-property relationship in high-nuclear Ag NCs and offer a rational strategy for enhancing their luminescence efficiency for potential applications.
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Registered trials
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