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作 者:张钦涵 邹鹏[1] 刘丽炜[1] 胡思怡[1] 任玉[1] 王玥[1] 房文汇[1] 张喜和[1]
出 处:《长春理工大学学报(自然科学版)》2017年第1期38-42,共5页Journal of Changchun University of Science and Technology(Natural Science Edition)
基 金:长春理工大学科技创新基金(XJJLG-2015-01)
摘 要:利用水热法成功制备了Yb^(3+)/Ho^(3+)掺杂氟磷灰石(FA:Yb^(3+)/Ho^(3+))纳米材料,通过改变稀土离子Yb^(3+)的掺杂比例有效提高了纳米材料的上转换发光强度。利用透射电子显微镜(TEM)、X射线衍射仪(XRD)、傅里叶红外光谱仪(FTIR)、荧光光谱仪等表征手段对Yb^(3+)/Ho^(3+)掺杂纳米氟磷灰石的形貌、结晶程度和物相组成、发光性质进行了研究。结果表明,Yb^(3+)/Ho^(3+)掺杂氟磷灰石纳米材料呈棒状并具有六方相结构。通过对稀土离子Yb^(3+)的掺杂比例进行调节,使得材料的上转换发光效率有了明显的增强,Yb^(3+)的掺杂含量为60%时发光最强。因此,这类具有较好上转换发光性能的FA:Yb^(3+)/Ho^(3+)纳米材料可为细胞标记和成像提供良好的条件,有望促进其在生物医药领域中的广泛应用。Yb3+/Ho3+ doped nano-fluorapatite (FA: Yb3+/Ho3+)were prepared successfully by hydrothermal method. The up- conversion luminescence intensity of FA:Yb3+/Ho3+ nanomaterials were effectively improved by changing the doped pro- portion of the rare earth Yb3+ ions. Transmission electron microscopy (TEM),X-ray diffraction (XRD),Fourier Trans- form Infrared Spectrometer (FTIR), fluorescence spectroscopy were used to characterization the morphology, degree of crystallinity and phase composition, luminescence properties of Yb3+/Ho3+ doped nano-fluorapatite. The results showed that Yb3+/Ho3+ doped nano-hydroxyapatite material rod-shaped and has a hexagonal crystal structure. By adjusting the doped proportion of the rare earth Yb3+ ions, upconversion luminescence efficiency of the material has greatly improved. The strongest emitting of FA:Yb3+/Ho3+ nanomaterials is when the doped proportion of the rare earth Yb3+ ions reach to 60%. Thus,this kind of FA:Yb3+/Ho3+ nanomaterials has good upeonversion luminescence properties can provide fa- vorable conditions in cell markers and imaging. It is expected to promote their wider application in the biomedical field.
关 键 词:Yb3+、Ho3+掺杂 纳米氟磷灰石 上转换发光
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