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PL spectra of the particles for two different gas mixtures.
Dependence of the position of the PL peak on the N2 content in the gas mixture.
(Color online) Typical confocal image (15 μm × 15 μm) and typical SEM micrograph.
PL spectra of the numbered particles showed in Figure 3(a).
PL intensity versus particle size for two gas mixtures.
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