Eu doped BaMgWO (BMW) double-perovskite was successfully synthesized for the first time by the co-precipitation method. The synthesis procedure, crystal structure, as well as morphology of obtained samples are presented. Domination of the D-F magnetic-dipole over forced electric-dipole transitions in the emission spectra indicates that Eu ions are located in the high symmetry site with inversion center. Only one emission line assigned to the D-F transition was observed, confirming that europium substituted for only one host cation site. The photoluminescence excitation (PLE) spectrum is dominated by a strong and broad band related to the O → Eu and O → W charge transfer. The decay of the emission from the D and D levels was investigated. The temperature-dependent emission spectra showed that the T is equal to 350 K. Extinguishing mechanisms of the Eu luminescence in the studied host are discussed.
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| http://dx.doi.org/10.3390/ma13071614 | DOI Listing |
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