高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (12): 1945.

• 研究快报 • 上一篇    下一篇

量子尺寸氧化锌颗粒的表面光电压谱研究

张昕彤1, 庄家骐2, 徐金杰2, 谢腾峰2, 王德军2, 白玉白2, 李铁津2, 姚建年1   

  1. 1. 中国科学院感光化学研究所, 北京 100081;
    2. 吉林大学化学系, 长春 130023
  • 收稿日期:1999-07-12 出版日期:1999-12-24 发布日期:1999-12-24
  • 通讯作者: 白玉白
  • 作者简介:张昕彤,男,25岁,博士,讲师,现为中国科学院博士后.
  • 基金资助:

    国家攀登计划B项目和国家自然科学基金(批准号:29681001)资助课题

Studies of Surface Photovoltage Spectroscopy on Quantum-Sized ZnO Nanoparticles

ZHANG Xin-Tong1, ZHUANG Jia-Qi2, XU Jin-Jie2, XIE Teng-Feng2, WANG De-Jun2, BAI Yu-Bai2, LI Tie-Jin2, YAO Jian-Nian1   

  1. 1. Institute of Photographic Chemistry, Chinese Academy of Sciences, Beijing 100081, China;
    2. Department of Chemsitry, Jilin University, Changchun 130023, China
  • Received:1999-07-12 Online:1999-12-24 Published:1999-12-24

关键词: 氧化锌, 纳米微粒, 表面光电压谱, 表面态

Abstract: In the present work, we prepared two kinds of quantum-sized ZnO particles whose size were 3nm(P1) and 5nm(P2), respectively, and studied their surface properties with surface photovoltage spectroscopy(SPS) and electric field induced surface photovoltage spectroscopy(EFISPS). The photovoltaic response of the two samples showed opposite dependence on external electric field. And when electric field was applied, the thresholds of photovoltaic response of the two samples were all red-shifted. The results showed that the surface properties of P1 were different from those of P2, because of their different preparation process. We assigned that basic zinc acetate structure exist on the surface of P1 sample. While for P2 sample prepared by aging P1, that kind of surface structure disappeared, but the particles might be doped with lithium ions in the aging process.

Key words: ZnO, Nanoparticles, Surface photovoltage spectroscopy, Surface state

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