アモルファス合金ナノ構造におけるプラズモニック特性の探索

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  • Exploring Plasmonic Properties of Amorphous Alloy Nanostructures

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In this work, we report on the plasmonic properties of Pd77.5Cu6Si16.5 (Pd-Cu-Si) amorphous alloy nanoparticles. Using Mie’s theory, the spectra of extinction, scattering, and absorption efficiencies are calculated for different particle diameters and refractive indices. Spectral shapes are similar for the Pd-Cu-Si and pure crystalline Pd nanoparticles. The Pd-Cu-Si spectral resonance peaks show enhanced redshift and broadening, which are attributed to crystallinity and composition. Quality factors indicate that the amorphous Pd-Cu-Si can be plasmonic nanomaterials comparable to the crystalline Pd.

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