Fig. 1. XRD patterns of samples. (a) Sr₅MgLa_2-x(BO₃)₆∶xBi³⁺; (b) whole of Sr₅MgLa_1.76-y(BO₃)₆∶0.24Bi³⁺, yY³⁺; (c) partial of Sr₅MgLa_1.76-y(BO₃)₆∶0.24Bi³⁺, yY³⁺; (d) Sr₅MgLa

Fig. 2. Crystal structure of Sr₅MgLa₂(BO₃)₆

Fig. 3. SEM images of samples. (a) Sr₅MgLa₂ (BO₃)₆; (b) Sr₅MgLa_0.9(BO₃)₆∶0.24Bi³⁺, 0.86 Y³⁺

Fig. 4. [in Chinese]

Fig. 4. Fluorescence spectra of Sr₅MgLa_1.76-y(BO₃)₅:0.24Bi³⁺, yY³⁺. (a) Excitation spectra; (b) emission spectra

Fig. 5. Fluorescence spectra of samples. (a) Excitation spectrum of Sr₅MgLa_1.76(BO₃)₆∶0.24Bi³⁺; (b) emission spectra of Sr₅MgLa_2-x(BO₃)₆∶xBi³⁺

Fig. 6. Fluorescence properties and energy transfer of Sr₅MgLa_y(BO₃)₆∶Bi³⁺, yEu³⁺. (a) Excitation spectrum of Sr₅MgLa_1.68(BO₃)₆∶0.12Bi³⁺, 0.2Eu³⁺; (b) emission spectra of Sr₅MgLa<

Fig. 7. Fluorescence properties of Sr₅MgLa_y(BO₃)₆∶xBi³⁺, 0.2Eu³⁺. (a) Emission spectra; (b) red and blue light intensities as functions of Bi³⁺ concentration

Fig. 8. Test results of Sr₅MgLa_1.68(BO₃)₆∶0.12Bi³⁺, 0.2Eu³⁺ excited at different wavelengths. (a) Emission spectra; (b) CIE chromaticity diagram

Fig. 9. Fluorescence attenuation and energy transfer efficiency. (a) Fluorescence attenuation curves of Bi³⁺ in Sr₅MgLa_1.88-y(BO₃)₆∶0.12Bi³⁺, yEu³⁺; (b) energy transfer efficiency from Bi³⁺ to Eu³⁺ by changing doping concentration of Eu³⁺

Fig. 10. Ultraviolet-visible diffuse reflectance spectra. (a) Bi³⁺ single doping and co-doping of Bi³⁺and Y³⁺ in Sr₅MgLa₂(BO₃)₆; (b) Bi³⁺ single doping and co-doping of Bi³⁺and Eu³⁺ in Sr₅MgLa₂(BO₃)₆; (c) Sr₅MgLa₂(BO₃)₆ substrate and Bi³⁺ single doping in Sr₅MgLa₂(BO₃