物理化学学报 >> 1986, Vol. 2 >> Issue (06): 554-559.doi: 10.3866/PKU.WHXB19860612

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用旋转园盘电极研究电沉积碲化镉机理

沈建; 郭也平; 邓薰南   

  1. 上海科学技术大学化学系
  • 收稿日期:1985-06-20 修回日期:1986-04-22 发布日期:1986-12-15

THE STUDY ON MECHANISM OF CADMIUM TELLURIDE ELECTRODEPOSITON WITH ROTATING DISC ELECTRODE

Shen Jian; Guo Yeping; Deng Xunnan   

  1. Department of Chemistry; Shanghai University of Science and Technology; Shanghai
  • Received:1985-06-20 Revised:1986-04-22 Published:1986-12-15

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摘要： 在旋转园盘电极上测定的碲化镉电沉积极化曲线, 转速与沉积电流的关系, 以及X射线衍射分析和表面分析, 确认在比纯镉析出电位正的区域可以沉积得碲化镉。提出了电沉积反应机理, 计算了碲化镉由Te与Cd~(++)生成的标准电极电位, 解释了极化曲线, 并指出制备不同导电类型碲化镉之电位范围。

Abstract: The cathodic current-potential curves of CdTe electrodeposition were measused using a rotating disc electrode. It was observed that there was a good linear relation between the square root of rotating rates and the electrodeposition currents At various rotating rates,the ratio of current at -0.25 V to that at -0.50 V (vs. SCE) was close to 2/3.
The X-ray diffraction analysis, XPS and AES showed that CdTe could be electrodepsited at a potential more positive than that for Cd electrodeposition.
Based on these resul...