标题：Green, blue, red, near-infrared up-conversion luminescence of Yb3+/Er3+/Tm3+co-doped YVO4nanoparticles
作者：Cheng, Yuan ;Sun, Kangning
作者机构：[Cheng, Yuan ] College of Material Science and Engineering, Shandong University, Jinan; 250061, China;[Sun, Kangning ] Engineering Ceramics Key Labora 更多
来源：Journal of Nanoparticle Research
摘要：YVO4:Yb3+,Er3+; YVO4:Yb3+,Tm3+; and YVO4:Yb3+,Er3+,Tm3+were all synthesized via sol-gel method with a subsequent thermal treatment. Specifically, YVO4:Yb3+,Er3+,Tm3+phosphors were prepared with different annealing temperatures to study the influence of temperature. The transmission electron microscope (TEM), scanning electron microscope (SEM), X-ray diffractometer (XRD), and photoluminescent (PL) spectrofluorometer were used to investigate the morphology, crystal structure, and up-conversion luminescent properties of all samples. In summary, all samples were granular-like nanoparticles and well crystallized with the same tetragonal phase as YVO4. Under the irradiation at 980 nm, YVO4:Yb3+,Er3+phosphors can generate green emission at 525 and 553 nm and red emission at 657 nm, while YVO4:Yb3+,Tm3+phosphors can generate blue emission at 476 nm, red emission at 648 nm, and near-infrared emission at 800 nm. Notably, YVO4:Yb3+,Er3+,Tm3+samples can exhibit green emission, blue emission, red emission, and near-infrared emission at the same time, which might endow the as-prepared samples with potential applications in many fields, such as luminous paint, infrared detection, and biological label.
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