CAJ | 학술논문

利用水热法合成了纳米级的Ho，Tm：BaYbF5上转换发光纳米粒子。通过XRD和SEM观察分析，随着pH的升高，逐渐合成BaYbF5纯相，分散性较好。产物具有良好的结晶性，粒径分布均匀。在980nm LD激发下，发射光谱中最强峰位于540nm，对应于Ho3+离子的5S2→5I8的跃迁，并给出了Yb-Tm-Ho的上转换发光机制。尺寸较小的Ho，Tm：BaY-bF5上转换发光纳米粒子在生物荧光标记等领域具有潜在的应用价值。
이용수열법합성료납미급적Ho，Tm：BaYbF5상전환발광납미입자。통과XRD화SEM관찰분석，수착pH적승고，축점합성BaYbF5순상，분산성교호。산물구유량호적결정성，립경분포균균。재980nm LD격발하，발사광보중최강봉위우540nm，대응우Ho3+리자적5S2→5I8적약천，병급출료Yb-Tm-Ho적상전환발광궤제。척촌교소적Ho，Tm：BaY-bF5상전환발광납미입자재생물형광표기등영역구유잠재적응용개치。
Ho, Tm:BaYbF5 up-conversion nanoparticles were successfully synthesized via a hydrothermal process. X-ray diffraction (XRD) and scanning electron microscopy (SEM) images showed that the products gradually became pure and the dispersity was good with the pH increasing. And the products had a good crystallinity and the particles were well-distributed. Pumped with 980nm laser diode, the peak of the emission spectrum located at 540nm, which corresponded to 5S2→5I8 of Ho3+, and the up-conversion mechanism of the Yb-Tm-Ho was also given in this paper. The little size of Ho, Tm:BaYbF5 up-conversion nanoparticles had potential applications in the biological field as lu-minescence labeling probes.