Luminescence behavior of Eu3+ with thenoyltrifluoroacetonate, sulfoxides and macrocyclics

Optical absorption and photoluminescence studies of Eu3+-doped phosphate and fluorophosphate glasses

“…In this case, t cal for the 5 [4] for the Eu 3+ ions than in PKBAEu glass. The higher value of the intensity parameter O 2 for Eu 3+ in PKBFAEu glass also reflects the hypersensitive nature of the 5 D 0 -7 F 2 transition and indicates that Eu 3+ is in a higher polarizable chemical environment [44].…”

“…The relatively higher value of R and O 2 for the PKBFAEu glass suggest a lower symmetry for Eu 3+ ions and a higher Eu-O covalence than in the PKBAEu glass. The appearance of the non-degenerate 5 D 0 -7 F 0 transition indicates that the Eu 3+ ion is in an environment of low symmetry [44] in title glass systems. The magnetic-dipole 5 D 0 -7 F 1 transition splits into three components, indicating that the crystallographic sites of the Eu 3+ ions in the present glasses is as low as orthorhombic, monoclinic or triclinic in a crystalline lattice [19,25].…”

A new β-diketone complex with high color purity

“…Compound FT-IR (ω i (cm −1 )) Raman (ω i (cm −1 )) [19] analogous behavior is observed [20]. Excitation luminescence spectrum of solid NH 4 [Eu (bmdm) 4 ] presents bands corresponding to charge transfer and f-f transition.…”

Y2O3:Eu3+ based nanophosphors with higher oscillator strength through lithium incorporation and indirect oxidation

“…The relatively higher value of R and˝2 for the Li + co-activated Y 2 O 3 :Eu 3+ doped films suggest a lower symmetry for Eu 3+ ions and a higher Eu-O covalence than in Y 2 O 3 :Eu 3+ doped films. The appearance of the non-degenerate 5 D 0 → 7 F 0 transition indicates that the Eu 3+ ion is in an environment of low symmetry [22]. The R value is found to be larger for Li + co-doped Y 2 O 3 :Eu 3+ indicating a larger emission efficiency.…”