fig2

Figure 2. (A) Room-temperature PLE (blue) and PL (red) spectra of Lu₃Sc_1.98Ga₃O₁₂:0.02Cr³⁺ phosphor. (B) Normalized PL spectra of Lu₃Sc_1.98-xMg_xGa_3-xSi_xO₁₂:0.02Cr³⁺ (x = 0.0-0.6) excited by 440 nm light. (C) Peak wavelength and FWHM of Lu₃Sc_1.98-xMg_xGa_3-xSi_xO₁₂:0.02Cr³⁺ (x = 0.0-0.9). (D) Tanabe-Sugano diagram of Cr³⁺ in the perfect octahedral environment. (E) Integrated intensity of PL spectra of Lu₃Sc_1.98-xMg_xGa_3-xSi_xO₁₂:0.02Cr³⁺ (x = 0.0-0.9) excited by 440 nm light. (F) DR spectra of Lu₃Sc_1.98-xMg_xGa_3-xSi_xO₁₂:0.02Cr³⁺ (x = 0.0-0.9).