Synthesis and Luminescent Properties of Ce³⁺/Eu³⁺ Coactivated YF₃ Nanobundles

Abstract

YF₃ nanobundles have been synthesized via a facile solvothermal synthesis, which were characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectrometer (FT-IR) and Thermogravimeter (TG). Results show that there are adsorbed water and residual organic molecules on the surface of YF₃ nanobundles, which play a key part in the formation of the final structure. Their morphology and structure can be tuned by varying reaction conditions including the amount of F⁻ ions and temperature. The luminescence properties of Ln³⁺-doped and Ce³⁺/ Eu³⁺co-doped YF₃ have been investigated by photoluminescence (PL). It is found that the luminescence intensity of Ce³⁺/ Eu³⁺co-doped YF₃ nanobundles is obviously enhanced due to the efficient sensitizing of Ce³⁺.

Keywords:

• Ce³⁺/Eu³⁺ co-doped YF₃
• nanobundles
• luminescence material