Electron microscope image of monodisperse nanoparticle agglomerates with a particle diameter of .
Transmission electron microscope image of Si nanoparticles with an average diameter of .
Auger electron spectra of nanoparticles of different sizes and stoichiometry deposited on Pd.
Auger electron spectra of Si nanoparticles of different sizes deposited on Au.
Experimental ratio (data points) of oxygen and silicon Auger intensities as a function of the reciprocal of the median diameter. The shaded area represents the expected theoretical values according to Eq. (2) for oxide thicknesses between 0.5 and .
EEL spectra from nanoparticles. PL: plasmon loss, : core-level ionization, and IT: interband transition.
EEL spectra from Si nanoparticles and the Si bulk sample.
Observed valence band plasmon energies as a function of the diameter of the particles.
Plasmon energy shift as a function of the diameter on a double logarithmic plot. The blueshifts obey a power law of the particle diameter.
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