Figure 5From: Evolution of the sensitized Er3+ emission by silicon nanoclusters and luminescence centers in silicon-rich silicaMatrix-related PL spectra of the 1,100°C-annealed SROEr films with different Si concentrations. Matrix-related PL spectra of samples with different Si concentrations: (a) SROEr-I, 38.5 at.%, (b) SROEr-II, 37.0 at.%, and (c) SROEr-III, 35.7 at.%. All the films were excited by the 325-nm line of the He-Cd laser.Back to article page