高等学校化学学报

高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (11): 2086.

• 研究快报 • 上一篇    下一篇

一种具有高效光致变色性能的WO3/ZnO纳米粒子复合体系

解仁国1, 庄家骐1, 王凌凌1, 杨文胜1, 王德军1, 李铁津1, 姚建年2   

  1. 1. 吉林大学化学学院, 长春 130023;
    2. 中国科学院化学研究所分子科学中心, 北京 100080
  • 收稿日期:2003-04-23 出版日期:2003-11-24 发布日期:2003-11-24
  • 通讯作者: 杨文胜(1964年出生),男,博士,教授,主要从事纳米结构功能材料研究.E-mail:wsyang@jlu.edu.cn E-mail:wsyang@jlu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:50172019);教育部优秀青年教师资助计划资助

A WO3/ZnO Nanoparticle Composite System with High Photochromic Performance

XIE Ren-Guo1, ZHUANG Jia-Qi1, WANG Ling-Ling1, YANG Wen-Sheng1, WANG De-Jun1, LI Tie-Jin1, YAO Jian-Nian2   

  1. 1. College of Chemistry, Jilin University, Changchun 130023, China;
    2. Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2003-04-23 Online:2003-11-24 Published:2003-11-24

PDF (PC)

关键词: 光致变色, 纳米粒子, 表面光电压谱

Abstract: The colloids of ZnO and WO3were synthesized and ZnO colloid with different mass fractions was added into the WO3colloid to get WO3/ZnO composite colloids.The experimental resultSIndicate that the UV-light coloration of WO3nanoparticles could be improved greatly after the addition of ZnO.When the molar ratio of ZnO to WO3is about 1∶100, the magnitude of the difference of absorbance(ΔOD) at 900 nMAfter and before the coloration for WO3/ZnO colloidSIs as about135times as that of WO3colloids.The surface photovoltaic spectra show that the state density of the surface state of WO3increases greatly after the addition of ZnO, thus, under the UV-light irradiation more electrons from ZnO nanoparticles can be captured in the surface state and those electrons can be excited to a higher energy level, resulting in the improved coloration.

Key words: Photochromism, Nanoparticle, Surface photovoltage spectrum

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