Figure 5

Normalized O K-edge XANES and Kα XES spectra of SSO:xEu3+ phosphors (x = 1.0, 2.0 and 5.0%), SSO and Eu2O3. The inset shows the CBM and VBM, as indicated by the solid lines and obtained by extrapolating the leading edges in the XANES and XES spectra to the baseline (guided by eye). The lower panel shows the different spectra of O K-edge XANES and Kα XES between SSO:xEu3+ phosphors and SSO.