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Plasmonic Properties of Individual Bismuth Nanoparticles
Michael Foltýn1, Michal Kvapil1,2, Tomáš Šikola1,2
1Brno University of Technology, Central European Institute of Technology, Purkyňova 123, Brno 612 00, Czech Republic.
The Journal of Physical Chemistry Letters
|September 13, 2025
Summary
Bismuth nanoparticles exhibit tunable optical properties due to localized surface plasmon resonances, making them promising for diverse plasmonic applications. Their stability and material benefits suggest suitability for industrial use.
Area of Science:
- Nanotechnology
- Materials Science
- Optical Physics
Background:
- Bismuth nanoparticles are explored for photothermal and photocatalytic potential.
- Understanding their optical properties is key for application development.
Purpose of the Study:
- To synthesize and characterize bismuth nanoparticles.
- To investigate their structural and optical properties at the single-particle level.
- To explore their potential for plasmonic applications.
Main Methods:
- Synthesis of spherical bismuth nanoparticles (50-600 nm).
- Analytical transmission electron microscopy for structural and optical analysis.
- Numerical simulations to support experimental findings.
Main Results:
- Bismuth nanoparticles support tunable localized surface plasmon resonances (LSPRs).
- LSPR tuning spans from near-infrared to near-ultraviolet by adjusting nanoparticle size.
- Plasmonic resonances exhibit stability across a broad spectral range.
Conclusions:
- Bismuth nanoparticles offer tunable plasmonic properties suitable for wide spectral applications.
- Bismuth's cost-effectiveness, biocompatibility, and oxidation resistance favor industrial plasmonic applications.
- These nanoparticles are attractive candidates for large-scale and industrial plasmonic uses.
