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首页> 外文期刊>International Journal of Electrochemical Science >Synthesis and Characterization of Electrochromic Films Based on 2,5-Bis (2-(3,4-ethylenedioxy)thienyl)pyridine
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Synthesis and Characterization of Electrochromic Films Based on 2,5-Bis (2-(3,4-ethylenedioxy)thienyl)pyridine

机译：基于2,5-双（2-（3,4-亚乙二氧基）噻吩基）吡啶的电致变色薄膜的合成与表征

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摘要

Pyridine was synthesized by Stille coupling. This monomerhaving D-A-D structure was successfully electropolymerized by cyclic voltammetry. Theelectrochemical, optical, electrochromic, nanomechanical properties of the films, as well as theirstability and morphology were studied. The polymer films exhibit a multi coloured behaviour, i.e. theircolour changed upon oxidation form red (in the neutral state) to purple and sky blue (doped state). Inthe reduced state are pale blue. Based on the nanomechanical properties, the films synthesized underlow number of scans (2 or 5 scans) are well adhered on the ITO electrodes, whereas a higher numberof scans (20 scans) results to a thicker, more elastic and more soft film. The poly(2,5-bis(2-(3,4- ethylenedioxy)thienyl)pyridine) films synthesized under few scans are proposed for application inmulicoloured electrochromic devices, since they are well adhered on the ITO, they reversible switchtheir colour from red to sky blue and they are stable during the potential switch.
机译：通过Stille偶联合成吡啶。通过循环伏安法成功地将该具有D-A-D结构的单体电聚合。研究了薄膜的电化学，光学，电致变色，纳米力学性能及其稳定性和形态。聚合物膜表现出多种颜色的行为，即，它们的颜色在氧化后从红色（中性状态）变为紫色和天蓝色（掺杂状态）而改变。在还原状态下为淡蓝色。基于纳米力学性能，在低扫描次数（2或5扫描）下合成的薄膜可以很好地粘附在ITO电极上，而较高的扫描次数（20扫描）可以形成更厚，更具弹性和更柔软的薄膜。提议在几次扫描下合成的聚（2,5-双（2-（3,4-乙撑二氧基）噻吩基）吡啶）薄膜可用于多色电致变色器件，因为它们很好地粘附在ITO上，可逆地从红色切换其颜色变为天蓝色，并且在电势切换期间它们保持稳定。

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