Figure 10
Electron spectroscopy for chemical analysis spectra of (a) SrSi 2 O 2 N 2 : Eu 0.03 2+ (baked and unbaked samples) and detailed XPS spectra are shown in (b) O 1 s, (c) N 1 s, (d) Si 2p, and (e) Eu 4d, respectively. (Reprinted with permission from reference [17]. Copyright 2014, The Royal Society of Chemistry).