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电化学(中英文) ›› 2002, Vol. 8 ›› Issue (1): 5-8. 

• 研究论文 • 上一篇    下一篇

后处理对TiO_2纳米晶膜电极光电性能的改善(英文)

任焱杰,张莉,蔡生民   

  1. 北京大学化学与分子工程学院,北京大学化学与分子工程学院,北京大学化学与分子工程学院 北京100871 ,北京100871 ,北京100871
  • 收稿日期:2002-02-28 修回日期:2002-02-28 出版日期:2002-02-28 发布日期:2002-02-28

Photocurrent Enhancement by TiCl_4 Post_Treatment for TiO_2 Nanoporous Film Electrode

REN Yan_jie, ZHANG Li, CAI Sheng_min   

  1. (College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,China
  • Received:2002-02-28 Revised:2002-02-28 Published:2002-02-28 Online:2002-02-28

摘要: 利用TiCl4 水溶液处理TiO2 纳米晶膜电极 ,可以提高光电流 ,改善电极的光电转换性能 .对未经处理和处理后电极的比表面、孔分布 ,以及瞬态光电流分析表明 ,后处理改善了电荷在电极中的传输 ,从而提高了光电流

关键词: 光电化学电池, 敏化, TiO2, 电极处理

Abstract: Enhanced photocurrent in dye_sensitized photoelectrochemical cell was obtained by post_treating the TiO 2 nanoporous film electrode with TiCl 4. By investigating the effect of the post_treatment on surface area, pore size distribution, laser pulse induced current transient of the film electrode, photocurrent increase by the post_treatment was assigned to the improved electron percolation resulting from broadening of interparticle neck.

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