Xiaojun Wang, Lifang Liang, Kai Chen, Guohui Yang, Lili Meng. Synthesis and Luminescence Properties of Sr5MgLa2-x-y(BO3)6∶xBi 3+, yM (M=Eu 3+,Y 3+) Phosphors[J]. Acta Optica Sinica, 2019, 39(11): 1116001
- Acta Optica Sinica
- Vol. 39, Issue 11, 1116001 (2019)
Fig. 1. XRD patterns of samples. (a) Sr5MgLa2-x (BO3)6∶x Bi3+; (b) whole of Sr5MgLa1.76-y (BO3)6∶0.24Bi3+, y Y3+; (c) partial of Sr5MgLa1.76-y (BO3)6∶0.24Bi3+, y Y3+; (d) Sr5MgLa
Fig. 2. Crystal structure of Sr5MgLa2(BO3)6
Fig. 3. SEM images of samples. (a) Sr5MgLa2 (BO3)6; (b) Sr5MgLa0.9(BO3)6∶0.24Bi3+, 0.86 Y3+
Fig. 4. [in Chinese]
Fig. 4. Fluorescence spectra of Sr5MgLa1.76-y (BO3)5:0.24Bi3+, y Y3+. (a) Excitation spectra; (b) emission spectra
Fig. 5. Fluorescence spectra of samples. (a) Excitation spectrum of Sr5MgLa1.76(BO3)6∶0.24Bi3+; (b) emission spectra of Sr5MgLa2-x (BO3)6∶x Bi3+
Fig. 6. Fluorescence properties and energy transfer of Sr5MgLay (BO3)6∶Bi3+, y Eu3+. (a) Excitation spectrum of Sr5MgLa1.68(BO3)6∶0.12Bi3+, 0.2Eu3+; (b) emission spectra of Sr5MgLa<
Fig. 7. Fluorescence properties of Sr5MgLay (BO3)6∶x Bi3+, 0.2Eu3+. (a) Emission spectra; (b) red and blue light intensities as functions of Bi3+ concentration
Fig. 8. Test results of Sr5MgLa1.68(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 Sr5MgLa1.88-y (BO3)6∶0.12Bi3+, y Eu3+; (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
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