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水热法合成CdS/ZnO核壳结构纳米微粒
引用本文:孙聆东,雪峰,钱程,廖春生,严纯华.水热法合成CdS/ZnO核壳结构纳米微粒[J].高等学校化学学报,2001,22(6):879-882.
作者姓名:孙聆东  雪峰  钱程  廖春生  严纯华
作者单位:1. 北京大学 北京大学-香港大学稀土材料和生物无机化学联合实验室,
2. 北京大学北京大学-香港大学稀土材料和生物无机化学联合实验室,
基金项目:国家自然科学基金! (批准号 :2 970 10 0 1,2 983 2 0 10,2 0 0 0 10 0 2 ),国家重点基础研究发展规划项目! ( G19980 613 13 )、国家
摘    要:以半胱氨酸镉配合物为前驱体,采用水热法合成CdS纳米微粒,并以ZnO对其进行表面修饰,形成具有核/壳结构的CdS/ZnO半导体纳米微粒,CdS纳米微粒表面经ZnO修饰后,其带边发射大大增强,透射电镜显示,110℃下反应4h所得的CdS/ZnO颗粒尺寸约为20nm,电子衍射表明其结构为六方相。

关 键 词:不热水  发射光谱  硫化镉  氧化锌  核/壳结构  表面修饰  半导体纳米微粒  复合半导体
文章编号:0251-0790(2001)06-0879-04

Synthesis of Core/Shell Structural CdS/ZnO Nanoparticles by Hydrothermal Method
SUN Ling Dong,FU Xue Feng,QIAN Cheng,LIAO Chun Sheng,YAN Chun Hua.Synthesis of Core/Shell Structural CdS/ZnO Nanoparticles by Hydrothermal Method[J].Chemical Research In Chinese Universities,2001,22(6):879-882.
Authors:SUN Ling Dong  FU Xue Feng  QIAN Cheng  LIAO Chun Sheng  YAN Chun Hua
Abstract:CdS and ZnO capped CdS semiconductor nanoparticles were synthesized via hydrothermal method by thermal decomposition of the cysteine cadmium complex precursor. The results of XPS suggested that CdS and ZnO was formed. Compared to CdS nanoparticles, the band gap emission of CdS/ZnO was greatly improved, which means the shell of ZnO modified the surface of CdS core and reduced the surface defect. ED confirmed the formation of hexagon phase CdS and the TEM image indicated that the size of CdS/ZnO was about 20 nm.
Keywords:CdS nanoparticles  Hydrothermal method  Emission spectra
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