In Situ Growth of ZnO inside a Porous Silicon Matrix Obtained by Electrochemical Etching with a Hydrofluoric Acid-Formaldehyde Solution

Figure 2

(a) Room temperature PL of PS and ZnO/PS. (b) Multi-Gaussian fitting of PL spectra from the PS sample: the red line is the sum of the three contributions (blue, green, and pink lines), and the black line corresponds to the experimental data. (c) Multi-Gaussian fitting of PL spectra from the ZnO/PS sample: the red line is the sum of the tree contributions (blue, green, and pink lines), and the black line corresponds to the experimental data.

(a)

(b)

(c)