高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (11): 2077.

• 研究快报 • 上一篇    下一篇

ZnO纳米粒子结构对光电量子限域特性的影响

林艳红, 王德军, 肇启东, 杨敏, 张清林   

  1. 吉林大学化学学院, 长春 130023
  • 收稿日期:2003-07-16 出版日期:2003-11-24 发布日期:2003-11-24
  • 通讯作者: 王德军(1951年出生),男,博士,教授,博士生导师,从事表面光电行为研究.E-mail:wangdj@mail.jlu.edu.cn E-mail:wangdj@mail.jlu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:20273027);教育部博士学科点基金(批准号:020183008);吉林大学纳米材料专项基金资助

Effect of ZnO Nanoparticle Structure on Photo-electric Quantum Confinement Properties of Photogenerated Charges

LIN Yan-Hong, WANG De-Jun, ZHAO Qi-Dong, YANG Min, ZHANG Qing-Lin   

  1. College of Chemistry, Jilin University, Changchun 130023, China
  • Received:2003-07-16 Online:2003-11-24 Published:2003-11-24

关键词: ZnO纳米粒子, 量子限域, 场诱导表面光电压谱, 激子态

Abstract: The ZnO quantum dot particles with an average particle size 3 nMAnd the ZnO nanorods with an average length of 80 nMAnd width about 14 nm were synthesized by the sol-gel method.The surface photovoltaic properties of ZnO nanoparticles were investigated by means of FISPS technique and the bandSIn FISPS were identified.The results show that the surface photovoltaic properties of ZnO nanoparticles make a great difference for the structures or sizes due to the quantum confinement effect.The photovoltaic response intensity of ZnO nanorodSIs two-orders of magnitude stronger than that of quantum dot particles.And it is found that the ZnO quantum dot particles exhibit significant quantum confinement properties of photogenerated charges.The photovoltaic response bands of ZnO nanorods are related to band-band transition and bound exciton transition, respectively.

Key words: ZnO nanoparticles, Quantum confinement, Field induced surface photovoltage spectra(FISPS), Excition state

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