Synthesis of Blue-Green Phosphors Sr₄Si₃O₈Cl₄:Eu²⁺ by Gel-Combustion Method and Their Luminescent Properties

Figure 6

Excitation spectra (a) and emission spectra (b) of Sr_4−𝑥Mg_𝑥Si₃O₈Cl₄:Eu²⁺ obtained at different concentrations of Mg²⁺ (𝑥=0, 1.0, 1.5, 2.0).

(a)

(b)