The fabrication and luminescence properties of Ce3+ doped NaLuP2O7 phosphor for X-ray imaging; X-ray 영상을 위한 NaLuP2O7: Ce3+ 형광체의 제조와 발광 특성 연구

초록

The noble NaLuP2O7:Ce3+ phosphor was synthesized using a solid-state reaction method at 700 °C for 40 hours. To analyze the crystal structure of NaLuP2O7:Ce3+, we used X-ray diffractometer (XRD) and FE-SEM (field emission scanning electron microscope). As a result of analyzing the fluorescence characteristics of NaLuP2O7:Ce3+, it was found that the luminescence spectra of PL (photoluminescence) is correspond to XRL (X-ray luminescence). The results show that the transition from 2D5/2 to 2F5/2 showed a wide luminous band in the 500–700 nm region. The rare earth phosphors have a high atomic number, which results in a high detection efficiency of X-rays with high penetration. In this study, NaLuP2O7:Ce3+ phosphor can be applied in the field of medical imaging for X-ray.

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