Fig. 1. XRD patterns of BaLa_1-xGa₃O₇：xBi³⁺（0.01≤x≤0.13）samples and schematic of crystal structure of BaLaGa₃O₇

Fig. 2. SEM image and corresponding elemental mappings of BaLa_0.89Ga₃O₇：0.11Bi³⁺ sample

Fig. 3. Diffuse reflectance spectra of BaLaGa₃O₇ host and BaLa_0.89Ga₃O₇：0.11Bi³⁺ sample

Fig. 4. Fluorescence spectra of BaLa_1-xGa₃O₇：xBi³⁺ （0.01≤x≤0.13）samples and schematic energy level diagram of Bi³⁺ ions

Fig. 5. Relationship between log（I/x）and log（x）for BaLa_1-xGa₃O₇：xBi³⁺（0.01≤x≤0.13）samples

Fig. 6. Decay curves of BaLa_1-xGa₃O₇：xBi³⁺（0.01≤x≤0.13）samples and corresponding fluorescence lifetime

Fig. 7. Quantum yield of BaLa_0.89Ga₃O₇：0.11Bi³⁺ sample

Fig. 8. Temperature-dependent PL spectra of BaLa_0.89Ga₃O₇：0.11Bi³⁺ sample