高等学校化学学报 ›› 2010, Vol. 31 ›› Issue (1): 112.

• 研究论文 • 上一篇    下一篇

电沉积法制备介孔TiO2/CdS薄膜光电极

周卫1,2, 付宏刚1,2, 潘凯2, 田春贵2, 田国辉2, 任志宇2, 曲阳2, 孙家锺1   

  1. 1. 吉林大学理论化学研究所, 理论化学计算国家重点实验室, 长春 130023;
    2. 黑龙江大学化学化工与材料学院, 功能无机材料化学省部共建重点实验室, 哈尔滨 150080
  • 收稿日期:2009-03-10 出版日期:2010-01-10 发布日期:2010-01-10
  • 通讯作者: 孙家锺, 男, 教授, 博士生导师, 院士, 主要从事理论化学研究. E-mail: huangxr@mail.jlu.edu.cn; 付宏刚, 男, 博士, 教授, 博士生导师, 从事半导体光电材料和纳米晶态碳基材料的研究. E-mail: fuhg@vip.sina.com
  • 基金资助:

    国家自然科学基金(批准号: 20431030, 20671032, 20971040)和黑龙江省自然科学基金(批准号: ZJG0602-01)资助.

Preparation of Mesoporous TiO2/CdS Thin Film Photoelectrode Through Electrodeposition

ZHOU Wei1,2, FU Hong-Gang1,2*, PAN Kai2, TIAN Chun-Gui2, TIAN Guo-Hui2, REN Zhi-Yu2, QU Yang2, SUN Chia-Chung1*   

  1. 1. State Key Laboratory of Theoretical and Computation Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, China;
    2. Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education and Heilongjiang Province, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
  • Received:2009-03-10 Online:2010-01-10 Published:2010-01-10
  • Contact: SUN Chia-Chung. E-mail: huangxr@mail.jlu.edu.cn; FU Hong-Gang. E-mail: fuhg@vip.sina.com
  • Supported by:

    国家自然科学基金(批准号: 20431030, 20671032, 20971040)和黑龙江省自然科学基金(批准号: ZJG0602-01)资助.

摘要:

采用阴极恒电位沉积法, 在介孔TiO2薄膜上制备了介孔TiO2/CdS薄膜光电极, 用XRD, SEM, Raman, SPS和UV-Vis等多种手段对薄膜电极进行了表征. 结果表明, CdS成功沉积到介孔TiO2的表面和孔道内, 形成了异质结结构. 通过光电流作用谱考察了该复合体薄膜电极的光电性能, 结果表明, 与单纯的介孔TiO2薄膜相比, 其光电转换效率显著提高, 这是由于CdS具有吸收可见光的特性以及CdS与介孔TiO2形成异质结从而使得光生载流子更容易分离的结果.

关键词: 介孔二氧化钛; 硫化镉; 电沉积; 光电性能

Abstract:

Mesoporous TiO2/CdS thin film photoelectrode was successfully prepared by electrodeposition CdS nanoparticles on mesoporous TiO2 thin film. The products were characterized by XRD, SEM, Raman, SPS and UV-Visible spectra. The results revealed that CdS nanoparticles were successfully deposited on the surface and in the hole of mesoporous TiO2 thin film. The photoelectric property of these films were investigated by photocurrent action spectra. The results show that the composite films exhibited enhance photoelectric conversion efficiency compared with mesoporous TiO2 thin films. This may be attributed to the character of CdS and the formation of mesoporous TiO2/CdS heterojunction.

Key words: Mesoporous TiO2; CdS; Electrodeposition; Photoelectric property

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