Dependence of Plasmon Spectra of Small Gold Nanoparticles from Their Size: an Atomic Force Microscopy Experimental Approach
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The spectra of small gold nanoparticles (GNPs) were theoretically described following the modified Mie equations and by adopting the Kriebig-Drude model. The experimental dependence of the absorption maximal intensity of small spherical GNPs versus their diameter was compared with a theoretically derived relation. The theoretical description is validated by simultaneously obtained data from UV-Vis plasmon absorption spectra together with the size of GNPs measured by means of atomic force microscopy (AFM).
KeywordsSmall gold nanoparticles (GNPs) Surface plasmon resonance Size-dependent dielectric function Plasmon absorption spectra Atomic force microscopy (AFM)
RT is thankful to the Bulgarian National Science Foundation for financial support via the Grant DRG 02/3.
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