高等学校化学学报

高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (6): 879.

• 研究论文 •    下一篇

水热法合成CdS/ZnO核壳结构纳米微粒

孙聆东, 付雪峰, 钱程, 廖春生, 严纯华   

  1. 北京大学稀土材料化学及应用国家重点实验室, 北京大学-香港大学稀土材料和生物无机化学联合实验室, 北京 100871
  • 收稿日期:2000-05-12 出版日期:2001-06-24 发布日期:2001-06-24
  • 通讯作者: 严纯华(1961年出生),男,博士,教授,博士生导师,主要从事稀土功能材料及分离研究.
  • 基金资助:

    国家自然科学基金(批准号:29701001;29832010;20001002);国家重点基础研究发展规划项目(G1998061313)、国家

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   

  1. Department of Chemical Biology, Pharmaceutical Science School of Peking University, Beijing 100083, China
  • Received:2000-05-12 Online:2001-06-24 Published:2001-06-24

PDF (PC)

被引次数

320

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: CdS纳米微粒, 水热法, 发射光谱

Abstract: CdSand ZnO-capped CdSsemiconductor nanoparticles were synthesized via hydrothermal method by thermal decomposition of the cysteine-cadmium complex precursor. The results of XPSsuggested that CdSand ZnOwas formed. Compared to CdSnanoparticles, the band-gap emission of CdS/ZnOwas greatly improved, which means the shell of ZnOmodified the surface of CdScore and reduced the surface defect. EDconfirmed the formation of hexagon phase CdSand the TEMimage indicated that the size of CdS/ZnOwas about 20 nm.

Key words: CdS nanoparticles, Hydrothermal method, Emission spectra

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