高等学校化学学报 ›› 2010, Vol. 31 ›› Issue (5): 858.

• 研究快报 • 上一篇    下一篇

n-Si/TiO2/偶氮颜料微纳米尺度下的光生电荷转移性质

王雪松, 王凌凌, 王德军, 谢腾峰   

  1. 吉林大学化学学院, 长春 130012
  • 收稿日期:2010-01-27 出版日期:2010-05-10 发布日期:2010-05-10
  • 通讯作者: 谢腾峰, 男, 博士, 教授, 主要从事光电功能材料研究. E-mail: xietf@jlu.edu.cn
  • 基金资助:

    国家“九七三”计划项目(批准号: 2007CB613303)和国家自然科学基金(批准号: 20703020, 20873053)资助.

Photo-generated Charge Transfer Characteristics of n-Si/TiO2/Azo Pigment in Micrometer Regions

WANG Xue-Song, WANG Ling-Ling, WANG De-Jun, XIE Teng-Feng*   

  1. College of Chemistry, Jilin University, Changchun 130012, China
  • Received:2010-01-27 Online:2010-05-10 Published:2010-05-10
  • Contact: XIE Teng-Feng. E-mail: xietf@jlu.edu.cn
  • Supported by:

    国家“九七三”计划项目(批准号: 2007CB613303)和国家自然科学基金(批准号: 20703020, 20873053)资助.

摘要:

本文利用KFM 研究了n-Si/TiO2/偶氮类颜料微纳米尺度下的光生电荷转移性质, 为进一步理解光电活性体系工作的微观机理提供了依据.

关键词: 异质结构; 表面光伏特性; Kelvin探针力显微镜; 光生电荷转移

Abstract:

The photo-generated charge transfer characteristics of n-Si/TiO2/Azo pigment in micrometer regions was studied by means of kelvin probe force microscopy(KFM) technique. The results showed that the photo-generated electrons of Azo pigment particles transferred to n-Si/TiO2 under illumination, and a photo-induced p-n-p structure in micro-scale was observed for the first time. This result indicates that photo-generated charge transfer characteristics of organic/inorganic complex in nano-scale can be observed directly by KFM.

Key words: Heterostructures; Surface photovoltage character; Kelvin probe force microscopy(KFM); Photo-generated charges transfer

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