华南理工大学学报(自然科学版) ›› 2004, Vol. 32 ›› Issue (6): 31-35.

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热处理下光电致变色器件的结构和变色性能

陈明洁1 沈辉2   

  1. 华南理工大学材料科学与工程学院中国科学院广州能源研究所 广东 广州 510640广东 广州 510070

  • 收稿日期:2003-10-15 出版日期:2004-06-20 发布日期:2015-09-09
  • 通信作者: 陈明洁(1977-),女,硕士生,主要从事纳米功能材料研究。 E-mail:mingming770122@163.com
  • 作者简介:陈明洁(1977-),女,硕士生,主要从事纳米功能材料研究。
  • 基金资助:
    广州市科技计划项目(2003J1-C0261)

Structure and Chromic Properties of the Photoelectrochromic Devices with Heat Treatment

Chen Ming-jie1 Shen Hui2   

  • Received:2003-10-15 Online:2004-06-20 Published:2015-09-09
  • Contact: 陈明洁(1977-),女,硕士生,主要从事纳米功能材料研究。 E-mail:mingming770122@163.com
  • About author:陈明洁(1977-),女,硕士生,主要从事纳米功能材料研究。

摘要:

用溶胶-凝胶法分别制备稳定的WO3和TiO2溶胶,溶胶颗粒分散不团聚,颗粒尺寸集中,并采用提拉法和旋涂法成膜,组装成光电致变色器件,研究了不同热处理温度下光电致变色器件的透过率变化.结果表明,1 000W碘钨灯光照10 min后,器件的透过率由变色前的70%下降到变色后的20%左右,达到了对可见光的调节作用.

关键词: 二氧化钛, 三氧化钨, 光电致变色, 溶胶-凝胶法, 热处理

Abstract: In this paper, stable WO3 sol and TiO2 sol with well-dispersed granules and narrow dimension distribution were prepared by the sol-gel method. Thin films were obtained by dip-coating and spin-coating methods and they were then assembled into a photoelectrochromic device. The variation of the transmittance with heating temperature of the photoelectrochromic device was investigated. The results show that the transmittance of the device decreases from 70% (bleached state) to 20% (colored state) under the illumination by 1000W tungsten-iodine lamp for 10min, thus achieving the purpose of adjusting the visible lights.

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