Influence of Nanosized Silicon Oxide on the Luminescent Properties of ZnO Nanoparticles

Figure 4

The luminescence spectra of the colloidal solutions of ZnO nanoparticles without SiO₂ (1) and in the presence of 0.25 g (2), 0.625 g (3), and 1.25 g of silica (4) in 10 mL of zinc oxide solution. [ZnO] = 2 × 10⁻²mol/L,  nm. The inset shows the dependency of luminescence intensity of ZnO nanoparticles on the amount of SiO₂ introduced into the solution.  nm.