The synthesis and luminescence properties of Lu2O3:Eu3+ rods and its comparative analysis with Lu2O2S:Eu3+ rods
Source abstract
Abstract
Rod-like Lu 2 O 3 :Eu 3+ nanoparticles were successfully prepared by solvothermal method and subsequent calcination . Thermogravimetric (TG), X-ray diffraction (XRD) Fourier transform infra-red spectroscopy (FT-IR), scanning electron microscopy (SEM) and photoluminescence (PL) spectrum were utilized to characterize the samples. According to the results of XRD and SEM, 600 °C is the optimum calcination temperature. PL spectra show that concentration quenching occurs when the concentration of Eu 3+ in Lu 2 O 3 reaches 4%. The symmetry of the local environment of Eu 3+ activators in Lu 2 O 3 has been described in the frame of Judd-Ofelt (J-O) theory. Then the luminescence properties of Lu 2 O 3 :Eu 3+ and Lu 2 O 2 S:Eu 3+ phosphors were compared. By comparison, it was found that the synthesized Lu 2 O 3 :Eu 3+ phosphors had higher luminescence intensity and longer fluorescence time than Lu 2 O 2 S:Eu 3+ phosphors at their respective optimal Eu 3+ doping concentrations. The reasons for the luminescence differences were attributed to the lower band-gap energy of the matrix and the lower symmetry around Eu 3+ .
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Lanthanide and Transition Metal Complexes · Radioactive element chemistry and processing
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (34)
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