高等学校化学学报

高等学校化学学报 ›› 2010, Vol. 31 ›› Issue (12): 2316.

• 研究快报 • 上一篇    下一篇

CdS/ZnO异质结构材料的光生电荷性质

王凌凌,杨文胜,王德军,谢腾峰   

  1. 吉林大学化学学院, 长春 130012
  • 收稿日期:2010-09-09 修回日期:2010-10-12 出版日期:2010-12-10 发布日期:2010-12-06
  • 通讯作者: 谢腾峰 E-mail:xietf@jlu.edu.cn
  • 作者简介:谢腾峰, 男, 博士,  教授, 主要从事光电功能材料的研究. 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 Charges Characteristics of CdS/ZnO Heterostructures Materials

WANG LingLing,YANG WenSheng,WANG DeJun,XIE TengFeng*   

  1. College of Chemistry, Jilin University, Changchun 130012, China
  • Received:2010-09-09 Revised:2010-10-12 Online:2010-12-10 Published:2010-12-06
  • Contact: XIE TengFeng E-mail:xietf@jlu.edu.cn
  • About author:谢腾峰, 男, 博士,  教授, 主要从事光电功能材料的研究. 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.

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被引次数

24

摘要： 本文制备了CdS/ZnO异质结构材料, 并以此为模型体系, 利用表面光伏技术研究了其光电性质, 结果表明, 利用表面光伏相位谱和瞬态光伏技术可以更进一步了解异质界面的光生电荷行为.

关键词: CdS/ZnO异质结构, 表面光伏相位谱, 瞬态表面光伏, 光生电荷转移

Abstract: The photo-generated charges characteristics of CdS/ZnO heterostructures materials have been studied by means of Surface photovoltage techniques. The results showed that the photovoltage intensities of CdS/ZnO heterostructures materials decresed comparing with that of CdS. From the results of transient photovoltage measurement, the photo-generated electrons of CdS could transferr to ZnO under illumination since an electric field formed on the interface between CdS and ZnO. But this field is too weak to dominate the photo-generated charges characteristics. This result indicates that photo-generated charges characteristics can be clarified furthermore by means of surface photovoltage phase and transient photovoltage techniques.

Key words: CdS/ZnO Heterostructures, surface photovoltage phase, Transient photovoltage, photo-generated charges transfer

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