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首页> 外文期刊>Smart Materials & Structures >Fabricating multicolored electrochromic devices using conducting copolymers
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Fabricating multicolored electrochromic devices using conducting copolymers

机译：使用导电共聚物制造彩色电致变色器件

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摘要

A centrosymmetric polymer precursor, 4-(2,5-di(thiophen-2-yl)-1H-pyrrol-1- yl)butan-1-amine (TPBA), was synthesized via a Knorr-Paal reaction and its copolymer with EDOT was electrochemically synthesized and characterized. While P(TPBA) has only two colors in its oxidized and neutral states, its copolymer with EDOT has eight different colors. Electrochromic devices based on P(TPBA)/PEDOT and P(TPBA-co-EDOT)/PEDOT were constructed and characterized. The oxidized state of the device shows blue color whereas it shows purple for the reduced state. At moderate potentials the device has good transparency with green and gray colors. The maximum contrast and switching time of the multielectrochromic copolymer device were measured as 25% and 0.8 s at 575 nm. Copolymerization not only increases the polymer's color scheme, but also improves its properties, such as redox stability and switching time.
机译：通过Knorr-Paal反应合成了中心对称的聚合物前体4-（2,5-二（噻吩-2-基）-1H-吡咯-1-基）丁丹-1-胺（TPBA） EDOT是电化学合成和表征的。尽管P（TPBA）处于氧化态和中性态只有两种颜色，但它与EDOT的共聚物却有八种不同的颜色。构造并表征了基于P（TPBA）/ PEDOT和P（TPBA-co-EDOT）/ PEDOT的电致变色器件。器件的氧化态显示为蓝色，而还原态显示为紫色。在中等电位下，设备具有绿色和灰色的良好透明度。该多电致变色共聚物装置的最大对比度和切换时间在575nm下测量为25％和0.8s。共聚不仅增加了聚合物的配色方案，而且改善了其性能，例如氧化还原稳定性和转换时间。

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