快速检索:      
引用本文:
【打印本页】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 155次   下载 163 本文二维码信息
码上扫一扫!
分享到: 微信 更多
镧系掺杂NaYF4:Yb/Er上转换纳米材料的合成及光学性能研究
王秀英, 贾能勤
上海师范大学 生命与环境科学学院, 上海 200234
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)
Synthesis and characterization of Lanthanide-doped NaYF4: Yb/Er up-conversion luminescent nanophosphors
Wang Xiuying, Jia Nengqin
College of Life and Environmental Sciences, Shanghai Normal University, Shanghai 200234, China
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