Figure 1From: Evaluating the use of blue phosphors in white LEDs: the case of Sr0.25Ba0.75Si2O2N2:Eu2+XRD measurement of the blue phosphor. XRD measurement of the prepared Sr0.25Ba0.75Si2O2N2:Eu2+ powder (bottom), compared with the calculated pattern for Sr0.25Ba0.75Si2O2N2 (top)[19]. The black circles indicate reflections, possibly originating from BaSi6N8O[26].Back to article page