Figure 4From: Energy transfer from luminescent centers to Er3+ in erbium-doped silicon-rich oxide filmsPL spectra of Er3+ion and PLE spectra of both Er3+ion and Si=O states. (a) PL spectra of the Er3+ ions in the SROEr films with various annealing conditions. (b) Normalized PLE spectra of the Si=O states (collected at 2.2 eV) and Er3+ (collected at 0.8 eV) for the SROEr film annealed at 1,150°C for 30 min.Back to article page