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稀土掺杂氟化钆钠纳米粒子的可控合成与多色荧光

发表时间:2011-08-15  浏览量:1648  下载量:520
全部作者: 齐飞,何定飞,梁亮波,喻学锋
作者单位: 武汉大学物理科学与技术学院
摘 要: 介绍一种在乙二醇中合成水溶性稀土掺杂氟化钆钠纳米粒子的方法,并运用透射电子显微镜(transmission electron microscope, TEM)、X射线衍射(X�ray diffraction, XRD)仪、傅里叶变换红外光谱(Fourier transform infrared spectroscopy,FT�IR)仪、荧光分光光度计对反应产物进行表征。结果表明:所合成的氟化钆钠纳米粒子呈椭球状,直径在20~35 nm之间,为四角晶相,具有较好的水溶性与生物相容性。相对于水相合成的氟化钆钠纳米粒子,该方法合成的纳米粒子具有更大的荧光强度,并且可通过调节掺杂的稀土离子实现不同颜色的荧光发射。
关 键 词: 光学;荧光标记;液相法;氟化钆钠
Title: Controllable synthesis and multicolor fluorescence of lanthanide�doped sodium gadolinium fluoride nanocrystals
Author: QI Fei, HE Dingfei, LIANG Liangbo, YU Xuefeng
Organization: School of Physics and Technology, Wuhan University
Abstract: This paper presents a way to synthesize the water�soluble sodium gadolinium fluoride nanocrystals doped with lanthanide ions. Transmission electron microscopy (TEM), X�ray diffraction (XRD), Fourier transform infrared spectroscopy (FT�IR) and fluorescence spectrophotometer are used to characterize the nanocrystals. The results indicate that the obtained nanocrystals are in cubic phase, water�soluble, and have an elongated spherical shape with diameters of 20�35 nm. Compared with the samples synthesized in water, the sodium gadolinium fluoride nanocrystals synthesized in this way exhibit much stronger fluorescence. Furthermore, multicolor fluorescence can be obtained through doping with different lanthanide ions in the nanocrystals.
Key words: optics; fluorescent labels; liquid phase method; sodium gadolinium fluoride
发表期数: 2011年8月第15期
引用格式: 齐飞,何定飞,梁亮波,等. 稀土掺杂氟化钆钠纳米粒子的可控合成与多色荧光[J]. 中国科技论文在线精品论文,2011,4(15):1366-1370.
 
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