Scanning electron microscopy (SEM) image of nanoparticles.
Transmission electron microscopy (TEM) image of nanoparticles sampled on a TEM grid.
Auger electron spectroscopy (AES) measurement of particles sampled on a Pd surface.
X-ray diffraction measurement of nanoparticles with .
Raman spectroscopy measurement of nanoparticles with different particle diameters.
Raman peak positions for bands and , and the peak as a function of particle diameter.
Optical absorption of the nanoparticles as a function of their size.
Band gap of nanoparticles as a function of their size.
Results of photoluminescence measurements for different particle sizes and oxidation states.
Band gaps for nanoparticles determined by absorption measurements.
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