Figure 4From: Evolution of the sensitized Er3+ emission by silicon nanoclusters and luminescence centers in silicon-rich silicaNormalized PL excitation spectra for the 1,100°C-annealed SROEr-I film. Normalized PL excitation spectra of Si NCs (measured at 1.6 eV) and Er3+ ions (measured at 0.8 eV) for the 1,100°C-annealed SROEr-I film.Back to article page