Abstract
ZnGa2S4:Eu,F and ZnGa2O4:Eu,F were synthesized and characterized by x-ray diffraction and photoluminescence (PL) measurements. ZnGa2S4:Eu,F has a tetragonal structure (sp. gr. \(D_{2{\text{d}}}^{11} = I\bar 42m\)) with a= 5.272 Å and c= 10.451 Å, and ZnGa2O4:Eu,F has a cubic structure (sp. gr. Fd3m) with a= 8.32 Å. The PL spectrum of ZnGa2S4:Eu,F consists of a broad band (FWHM = 1.11 eV) at 565 nm due to the Eu2+ 5D 1 → 7F 2 transition, and the spectrum of ZnGa2O4:Eu,F shows four emissions due to the Eu3+ 5 D 0 → 7 F 4 (λmax = 682 nm), 5 D 0 → 7 F 2 (λmax = 615 nm), 5 D 0 → 7 F 1 (λmax = 595 nm), and 5 D 0 → 7 F 0 (λmax = 584 nm) transitions.
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Tagiev, B.G., Guseinov, G.G., Dzhabbarov, R.B. et al. Synthesis and Luminescent Properties of ZnGa2S4:Eu,F and ZnGa2O4:Eu,F. Inorganic Materials 36, 1189–1191 (2000). https://doi.org/10.1023/A:1026609026359
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DOI: https://doi.org/10.1023/A:1026609026359