氧化锌-银复合纳米粒子的制备:吸收光谱和荧光光谱  

The Preparation of ZnO-Ag Core-shell Nanoparticle: Absorption and Fluorescence Spectrs

作　　者：陈四海[1] 任新民[1] 

机构地区：[1]中国科学院感光化学研究所,北京100101

出　　处：《物理化学学报》1995年第4期365-368,共4页Acta Physico-Chimica Sinica

基　　金：国家自然科学基金;Eastman Kodak公司资助

摘　　要：The ZnO-Ag core-shell nanoparticle in ethanol was prepared by photoreduction and colloidal methods. The experimental results obtained from the absorption spectrum, fluorescence spectrum and electron microscopy revealed that the structure of the hybrid particle is ZnO core covered with Ag. The thickness of silver layer formed on ZnO core can be controlled by the concentration of Ag+ and the time of UV irradiation.In addition, the electrical properties of the charge double layer of the ZnO particle greatly affect the formation of ZnO-Ag hybrid particle.The ZnO-Ag core-shell nanoparticle in ethanol was prepared by photoreduction and colloidal methods. The experimental results obtained from the absorption spectrum, fluorescence spectrum and electron microscopy revealed that the structure of the hybrid particle is ZnO core covered with Ag. The thickness of silver layer formed on ZnO core can be controlled by the concentration of Ag+ and the time of UV irradiation.In addition, the electrical properties of the charge double layer of the ZnO particle greatly affect the formation of ZnO-Ag hybrid particle.

关 键 词：氧化锌 银 纳米粒子 吸收光谱 荧光光谱 

分 类 号：TN304.9[电子电信—物理电子学] O48[理学—固体物理]