Correlation between light absorption and electric charge in solid state electrochromic windows

被引:18
作者
Jelle B.P. [1 ]
Hagen G. [1 ]
机构
[1] Department of Electrochemistry, Norwegian University of Science and Technology (NTNU)
关键词
absorption coefficient; electrochromic efficiency; polyaniline; Prussian Blue; tungsten oxide;
D O I
10.1023/A:1003607509649
中图分类号
学科分类号
摘要
Electrochromic windows based on different combinations of the electrochromic materials polyaniline (PANI), Prussian Blue (PB) and tungsten oxide (WO3), with the solid state polymer electrolyte poly(2-acrylamido-2-methyl-propane-sulphonic acid) (PAMPS) as an ionic conductor, have been studied. These windows show a large transmission regulation both in the visible and in the near infrared wavelength region. Integrated over the solar spectrum, wind/ws with PB deposited on top of PANI, with WO3 as a complementary coating, are typically able to regulate as much as 50% of the total solar radiation. The relationship between light absorption and charge extraction in electrochromic windows has been studied. The windows are coloured by applying a potential, which is then switched off, and the discharge process is followed by continuously measuring the light absorption and the charge extraction through a connected resistor. From the resulting linear relationship between the absorption and charge extraction, the overall absorption coefficient may be calculated.
引用
收藏
页码:1103 / 1110
页数:7
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