In situ colorimetric analysis of electrochromic polymers and devices
In situ colorimetric analysis of electrochromic polymers and devices
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DOI：
10.1021/cm000097o
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发表时间：
2000-05
影响因子：
8.6
通讯作者：
B. Thompson;P. Schottland;K. Zong;J. Reynolds
中科院分区：
文献类型：
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作者：
B. Thompson;P. Schottland;K. Zong;J. Reynolds
本文报道了一种基于CIE色度学体系的原位研究电致变色聚合物的比色方法。该方法可用于共轭聚合物的电化学和光学性质的比较，以及用于获得双聚合物电致变色器件的颜色控制。采用原位比色分析法研究了12种电致变色聚合物，以确定其CIE坐标和电化学电位窗口。通过控制电子密度和空间相互作用沿着共轭聚合物主链，我们已经开发了一套电致变色聚合物，提供颜色在整个范围的颜色空间。用基于聚（2-（3，4-亚乙二氧基）噻吩基（联苯））（PBEDOT-BP）和聚（3，6-双（3，4-亚乙二氧基）噻吩基）-N-甲基咔唑）（PBEDOT-NMeCz）的模型双聚合物器件说明了该方法的适用性。该器件产生绿色/棕色（L* = 48，a* = 0，B* = 20和L* = 44，a* = 6，B* = 26），这对电子器件来说是有趣的。
We report a colorimetric method for the in situ study of electrochromic polymers based on the CIE system of colorimetry. This method is useful for the comparison of the electrochemical and optical properties of conjugated polymers, and for gaining control of the color of dual polymer electrochromic devices. Twelve electrochromic polymers were investigated using in situ colorimetric analysis in order to define their CIE coordinates and electrochemical potential windows. By controlling the electron density and steric interactions along conjugated polymer backbones, we have developed a set of electrochromic polymers that provides colors throughout the full range of color space. The applicability of the method is illustrated with a model dual polymer device based on poly(2-(3,4-ethylenedioxy)thienyl(biphenyl)) (PBEDOT-BP) and poly(3,6-bis(3,4-ethylenedioxy)thienyl)-N-methylcarbazole) (PBEDOT-NMeCz). This device yields green/brown colors (L* = 48, a* = 0, b* = 20 and L* = 44, a* = 6, b* = 26) interesting for e...