吸光度
材料科学
聚噻吩
兴奋剂
红外线的
光电子学
红外光谱学
聚合物
共轭体系
光学
电极
导电聚合物
分析化学(期刊)
化学
有机化学
物理
物理化学
复合材料
作者
Takeya Unuma,Yuya Ishizaka
出处
期刊:Applied Optics
[Optica Publishing Group]
日期:2021-12-23
卷期号:61 (3): 759-759
被引量:1
摘要
We demonstrate a reversible control of the mid-infrared (mid-IR) transparency of conjugated polymer films in a compact electrochemical cell structure with planar IR-transparent electrodes. The mid-IR absorbance of up to more than 1.0 is observed when a 1.0 µm thick polythiophene layer is electrochemically doped with an ionic liquid under variable bias voltage. Furthermore, the doping and dedoping processes can be repeated with reproductive absorbance spectra, in contrast to the conventional one-way chemical doping. Our device structure works for actively variable attenuation filters in the mid-IR region and can also be extended potentially to the terahertz region.
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