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A Review of Alkali Tungsten Bronze Nanoparticles for Applications in Plasmonics

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Abstract

The optimal material for plasmonic applications is an electrical conductor with low damping losses, high chemical and thermal stability, simple low-cost synthetic methods, and a resonance frequency that can be tuned to suit a desired application. To date, plasmonic applications have predominantly relied on Au or Ag, but these materials are limited respectively by high damping losses and rapid corrosion. In the search for alternative plasmonic materials, the alkali tungsten bronzes have been identified as possible candidates, as they display many of the features of the optimal plasmonic material. In this review, we first describe the crystallography, electronic structure, synthesis methods and plasmonic behaviour of the tungsten bronzes. A range of plasmonic applications for tungsten bronze nanoparticles, including solar-control filtering, plasmonic photocatalysis and plasmonic photothermal therapy, are then discussed.

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Acknowledgements

The authors acknowledge D. Cuskelly and E. Kisi of The University of Newcastle for their insightful discussions, D. R. G. Mitchell of the University of Wollongong Electron Microscope Centre for their assistance in collecting the EELS data, and C. D. Geddes of the Plasmonics editorial team for soliciting the initial version of this manuscript.

Funding

Part of this work was funded by the Australian Research Council’s Discovery Projects funding scheme (DP120102545).

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Authors and Affiliations

  1. School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Camperdown, NSW, 2006, Australia

    Levi Tegg

  2. Australian Centre for Microscopy and Microanalysis, The University of Sydney, Camperdown, NSW, 2006, Australia

    Levi Tegg

  3. School of Information and Physical Sciences, University of Newcastle, Callaghan, NSW, 2308, Australia

    Vicki J. Keast

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  1. Levi Tegg
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L.T and V.J.K. contributed equally to the writing of the manuscript. L.T. prepared the figures. L.T. and V.J.K. edited and reviewed the manuscript equally.

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Correspondence to Levi Tegg.

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Tegg, L., Keast, V.J. A Review of Alkali Tungsten Bronze Nanoparticles for Applications in Plasmonics. Plasmonics 18, 49–71 (2023). https://doi.org/10.1007/s11468-022-01749-x

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