物理化学学报 >> 1998, Vol. 14 >> Issue (04): 315-319.doi: 10.3866/PKU.WHXB19980406

研究论文 上一篇    下一篇

二氧化钛纳米微粒膜光电化学行为的研究

罗瑾, 苏连永, 谢雷, 周静, 祖延兵, 林仲华   

  1. 固体表面物理化学国家重点实验室,厦门大学化学系,物理化学研究所,厦门 361005
  • 收稿日期:1997-08-23 修回日期:1997-10-20 发布日期:1998-04-15
  • 通讯作者: 罗瑾

Studies on Photoelectrochemical Behaviors of Nanocrystalline TiO2 Films

Luo Jin, Su Lian-Yong, Xie Lei, Zhou Jing, Zu Yan-Bing, Lin Zhong-Hua   

  1. State Key Laboratory for Physical Chemistry of the Solid Surface,Institute of Physical Chemistry,Department of Chemistry,Xiamen University,Xiamen 361005
  • Received:1997-08-23 Revised:1997-10-20 Published:1998-04-15
  • Contact: Luo Jin

摘要:

利用不同的制备方法制备出二氧化钛纳米微粒膜,对二氧化钛纳米微粒膜的光电化学材为和产生的机理进行了研究.结果表明;二氧化钛纳米微粒膜除了具有传统半导体的光电化学性质外,还具有不同于传统半导体的光电化学性质. 这主要是出膜的微粒性引起的,可综合传统半导体和胶粒半导体两种模型来加以解释.

关键词: 二氧化钛纳米微粒膜, 光电流, 热分解, 电沉积, 离子溅射

Abstract:

The photoelectrochemical behaviors and mechanisms of the nanocrystalline TiO2 films prepared using different preparation methods were studied .The results showed were studied . The results showd that the photoelectrochemical behaviors of nanocrystalline TiO2 films were different from that of compact semiconductor electrodes. The photoelectrochemical behaviors were ascribed to the existence of particles in TiO2 films. The mechanisms were suggested by means of both traditional semiconductor model and colloidal semiconductor model.

Key words: Nanocrystalline TiO2 Films, Photocurrent, Thermal decomposition, Electrodeposition, Ionic sputtering technique