| 摘要: |
| 以油酸为稳定剂通过水热法成功合成了镧系掺杂NaYF4∶Yb/Er上转换纳米发光材料（UCNPs）.通过控制合成条件，包括水热温度、时间以及反应物与溶剂的量，改变纳米晶体的晶相、形状和尺寸；优化实验条件，得到了适合生物应用的小尺寸、单分散β-NaYF4∶Yb/Er纳米发光材料；分析了其不同形貌的生长机理；并分别采用X射线粉末衍射仪（XRD）、场发射扫描电子显微镜（FESEM）、透射电子显微镜（TEM）、荧光仪等表征样品的相组成、形貌、微观结构及光学性能. |
| 关键词: 水热法 镧系掺杂 上转换纳米材料 |
| DOI：10.3969/J.ISSN.1000-5137.2017.06.009 |
| 分类号:O69 |
| 基金项目:上海市地方院校能力建设项目（17070503000） |
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| Synthesis and characterization of Lanthanide-doped NaYF4: Yb/Er up-conversion luminescent nanophosphors |
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Wang Xiuying, Jia Nengqin
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College of Life and Environmental Sciences, Shanghai Normal University, Shanghai 200234, China
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| Abstract: |
| Lanthanide-doped NaYF4:Yb/Er up-conversion luminescent nanophosphors (UCNPs) have been successfully synthesized by a facile hydrothermal method in which oleic acid was used as a stabilizing agent.The phase,shape,and size of the nanocrystals were regulated by careful control of synthetic conditions,including hydrothermal temperature and time,and the amounts of reactants and solvents.As a result of optimizing experimental conditions,monodisperse,oil-dispersible β-NaYF4:Yb,Er UCNPs have been obtained,which are well suitable for biological application.The phase,morphology,microstructure and luminescent properties of UCNPs were characterized by X-ray diffraction(XRD),field emission scanning electron microscope (FESEM),transmission electron microscope (TEM),fluorescence instrument,respectively. |
| Key words: hydrothermal method Lanthanide-doped up-conversion luminescent nanophosphors |
