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Figure 2 | Nanoscale Research Letters

Figure 2

From: Size-dependent visible absorption and fast photoluminescence decay dynamics from freestanding strained silicon nanocrystals

Figure 2

Micro-Raman and UV-Vis-NIR spectra of the freestanding Si NCs. (a) Micro-Raman spectra of different size Si NCs. Inset shows the plot of Raman shift of TO modes as a function NC size. (b) UV-Vis-NIR absorption spectra of the different size Si-NCs. Inset shows the band gap (E g) calculated from the absorption spectra as a function of NC size.

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