Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5397775 | Journal of Luminescence | 2017 | 6 Pages |
Abstract
We studied luminescent properties of Pr3+ complex with pyrazole and 1, 10-phenanthroline ligand environment. It was demonstrated that the complex exhibits so-called “antenna” effect which involves the electronic excitation transfer from the ligands to the rare-earth ion. The observed complex structure of the luminescence spectrum specific to Pr3+ indicates that in the investigated compounds the luminescence originates from the rare-earth ion exclusively. The obtained data provided a means to identify the electronic transitions in the ion and to develop the corresponding energy diagram. Fluorescence lifetime imaging revealed uniform distribution of luminescence decay times for the Pr3+ complex crystalline phase. Consequently, the Pr3+ complex under study has one type of emission sites.
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Authors
M.T. Metlin, S.A. Ambrozevich, D.A. Metlina, A.G. Vitukhnovsky, I.V. Taydakov,