Abstract
La3(BWO9):Tb3+ nanofibers were fabricated by an electrospinning process. The XRD patterns of the obtained fibers indicate that the incorporation of Tb3+ ions will not change the phase of La3(BWO9). The excitation spectrum monitored at 547 nm consists of excitation bands originating from 1T1 → 1A1 transition of O2− → W6+ in the WO6 group and 4f8 → 4f75d1/4f8 transitions of Tb3+. Upon the excitation at 362 nm, La3(BWO9):Tb3+ fibers show emission bands originating from the 5D4 → 7Fj (j = 6, 5, 4 and 3) transitions of Tb3+. The decay characteristics of La3BWO9:Tb3+nanofibers indicate that Tb3+ ions occupy one site in the host lattice.
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