Synthesis and Luminescent Properties of ZnGa2S4:Eu,F and ZnGa2O4:Eu,F |
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| Authors: | B G Tagiev G G Guseinov R B Dzhabbarov O B Tagiev N N Musaeva A N Georgobiani |
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| Affiliation: | (1) Institute of Physics, Academy of Sciences of Azerbaijan, pr. Dzhavida 33, Baku, 370143, Azerbaijan;(2) Lebedev Institute of Physics, Russian Academy of Sciences, Leninskii pr. 53, Moscow, 117924, Russia |
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| 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.
) 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 ( max = 682 nm), 5
D
0 7
F
2 (max = 615 nm), 5
D
0 7
F
1 (max = 595 nm), and 5
D
0 7
F
0 (max = 584 nm) transitions. |
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