Yu Shi-Yong, Zhang Hong-Jie, Yu Jiang-Bo, Wang Cheng, Sun Li-Ning, Shi Wei-Dong
Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China.
Langmuir. 2007 Jul 3;23(14):7836-40. doi: 10.1021/la700735m. Epub 2007 Jun 5.
A new class of bifunctional architecture combining the useful functions of superparamagnetism and terbium complex luminescence into one material has been prepared via two main steps by a modified Stöber method and the layer-by-layer (LbL) assembly technique. The obtained bifunctional nanocomposites exhibit superparamagnetic behavior, high fluorescence intensity, and color purity. The architecture has been characterized by field-emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), UV-vis absorption and emission spectroscopy, X-ray diffraction, and superconducting quantum interference device (SQUID) magnetometry.
通过改进的斯托伯方法和层层（LbL）组装技术，分两个主要步骤制备了一类新型的双功能结构，该结构将超顺磁性和铽配合物发光的有用功能结合在一种材料中。所获得的双功能纳米复合材料表现出超顺磁行为、高荧光强度和色纯度。通过场发射扫描电子显微镜（FE-SEM）、透射电子显微镜（TEM）、紫外可见吸收和发射光谱、X射线衍射以及超导量子干涉装置（SQUID）磁力测量对该结构进行了表征。
