影像科学与光化学 ›› 1987, Vol. 5 ›› Issue (3): 57-61.DOI: 10.7517/j.issn.1674-0475.1987.03.57

• 研究简报 • 上一篇    下一篇

氧化铁电极的半导体性能和光电化学 Ⅴ.烧结掺锌氧化铁电极的光电响应

蔡生民1, 童汝亭2, 蒋殿禄2, 金世勋2   

  1. 1. 北京大学化学系, 北京;
    2. 河北师范大学化学系, 石家庄
  • 收稿日期:1987-02-05 修回日期:1987-05-03 出版日期:1987-08-20 发布日期:1987-08-20
  • 基金资助:
    中国科学院科学基金

SEMICONDUCTIVE PROPERTIES AND PHOTOELECTRO-CHEMISTRY OF IRON OXIDE ELECTRODE V. THE PHOTORESPONSE OF SINTERED Zn-DOPED POLYCRYSTALLINE IRON OXIDE ELECTRODE

CAI SHENG-MIN1, TONG RU-TING2, JIANG DIAN-LU2, JIN SHI-XUN2   

  1. 1. Department of Chemistry, Beijing University, Beijing;
    2. Department of Chemistry, Hebei Normal University, Shijiazhuang
  • Received:1987-02-05 Revised:1987-05-03 Online:1987-08-20 Published:1987-08-20

摘要: Somorjai等曾报道在不同电势下,测得掺MgO氧化铁光电极具有n,p两种类型的光响应[1]。最近本实验室首次报道了在同一电势下,热形成的掺MgO-Fe2O3光电极具有n,p型双重光响应共存现象[2],由于其在电催化等中可能的应用价值引起了较广泛的兴趣。

关键词: 光电化学, 氧化铁电极, 光响应

Abstract: Zn-doped iron oxide electrodes that exhibit n-type and p-type photoresponses simultaneously at certain potential interval were prepared. Transformation of n-type photoresponse at more positive potential to p-type photoresponse at more negative potential was showed. The photo-voltage waveforms at different potentials were explicitly measured. It was found that the waveforms at intermediate potentials are linear pile of typical n-type and p-type waveforms. A model based on the existence of multiphase both on the surface and in the bulk of the electrode was advanced.

Key words: photoelectrochemistry, iron oxide electrode, photoresponse