聚苯乙烯微球表面合成CdSe纳米晶

无机材料学报, 2005, 20(6): 1306-1310.

聚苯乙烯微球表面合成CdSe纳米晶

夏明哲 , 李东升 , 杨德仁 , 阙端麟

浙江大学硅材料国家重点实验室, 杭州 310027

State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China

关键词：聚苯乙烯 , CdSe , nanoparticles , surface synthesis

Surface Synthesis of CdSe Nanocrystals on Polystyrene Spheres

XIA Ming-Zhe , LI Dong-Sheng , YANG De-Ren , QUE Duan-Lin

Keywords： polystyrene , 硒化镉 , 纳米颗粒 , 表面合成

以聚苯乙烯(PS)单分散微球为模板, 利用表面化学沉积, 在PS微球表面合成了CdSe纳米晶. 透射电子显微镜(TEM)观察发现, CdSe纳米晶以岛状形貌分布在PS微球表面, X射线衍射(XRD)分
析显示合成CdSe纳米晶具有立方相结构. 通过对产物形貌的演变过程进行观察分析表明, PS球周围的双电层结构对该形貌的形成起决定作用.

The CdSe nanocrystals were obtained by the chemical bath depostion on the surface of polystyrene (PS) served as the template. The transmission electron microscope (TEM) images show that the CdSe
nanocrystals are coated on the surface of PS with the island morphology. The CdSe nanocrystals are cubic structure confirmed by XRD. Finally, according to the morphology changing with the reaction
time, the formation of the morphologies is contributed to the PS electric double layer structure.

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