Two Ce3+ doped sodium strontium (calcium) silicates, Na2SrSi2O6:Ce3+ and Na2CaSi2O6:Ce3+, were prepared by high temperature solid state reaction. They both crystallize in trigonal crystal system with space group R3¯m. Substitution of three independent Ca2+ sites for Ce3+ ions yields blue emission when excited by UV light (λex = 352 nm). Accordingly, Ce3+ ions occupying two distinct Sr2+ sites generate UV to blue light under 300-nm UV excitation. A series of Na2Ca1-xSrxSi2O6:Ce3+ (x = 0–1) were prepared. All the samples form solid solutions a...
