Synthesis,structural characterization,and photoluminescence properties of TTB‐type PbTa2O6:Eu3+ phosphor |
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| Authors: | Mustafa İlhan |
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| Affiliation: | Department of Metallurgical and Materials Engineering, Marmara University, ?stanbul, Turkey |
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| Abstract: | Undoped and Eu3+‐doped tetragonal tungsten bronze (TTB) PbTa2O6 phosphors were synthesized by using solid‐state reaction method. Synthesized samples were characterized by XRD, SEM‐EDS, and photoluminescence analyses. XRD results revealed TTB‐type crystal structure with single phase up to 10 mol% Eu3+ doping concentration. In SEM‐EDS analyses, elemental composition of Pb decreased with the increasing concentration of Eu3+. Emissions at the excitation wavelength of 398.5 nm were observed at 593.2 and 618.8 nm due to 5D0→7F1 transitions and 5D0→7F2 transitions, respectively. Emission increased with the increasing Eu3+ doping concentration up to 10 mol% and not observed concentration quenching. |
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| Keywords: | luminescence scanning electron microscopy tantalum/tantalum compounds X‐ray methods |
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