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PL (solid line) and absorption (dashed line) spectra near the band edge of various ZnO QD sizes.
Typical Raman spectra of different sizes of ZnO QDs: (a) , (b) , (c) , and (d) .
Fitting of the modified spatial correlation model with , 0.2, and 0.27, respectively, to the measured result for average size of ZnO QDs.
Raman shift and asymmetric broadening of phonon as a function of correlation length or average size of nanocrystal. The solid curves indicate the calculated results of the modified SC model and the hollow circles the experimental results.
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