Figure 4.

PL 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.

Jin et al. Nanoscale Research Letters 2013 8:366   doi:10.1186/1556-276X-8-366
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