研究目的
To describe the impact that size effects have on the dielectric response for electron energy loss spectroscopy (EELS) of plasmonic nanoparticles.
研究成果
The study concludes that finite-size effects cannot be neglected for a broader size range of up to at least 200 nm for Au spherical nanoparticles. The results provide a suitable and versatile framework for the design of plasmonic elements on the nanometre scale.
研究不足
The study focuses on Au spherical nanoparticles and the size-dependent dielectric function, which may not be directly applicable to other materials or shapes without further research.
1：Experimental Design and Method Selection:
The study is based on experimental bulk complex refractive index and the modification of the Lorentz-Drude model.
2：Sample Selection and Data Sources:
Au spherical nanoparticles of different sizes were used.
3：List of Experimental Equipment and Materials:
Not explicitly mentioned.
4：Experimental Procedures and Operational Workflow:
Numerical simulation comparisons of EELS for Au spherical nanoparticles of different sizes were performed.
5：Data Analysis Methods:
The results were analysed to show that finite-size effects cannot be neglected for a broader size range of up to at least 200 nm for Au spherical nanoparticles.
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