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首页> 外文期刊>RSC Advances >A new electrochromic copolymer which switched between neutral black and oxidized transmissive
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A new electrochromic copolymer which switched between neutral black and oxidized transmissive

机译：一种新的电致变色共聚物，其在中性黑色和氧化透射型之间切换

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摘要

In this study, two monomers, 4,7-bis(2,3-dihydrothieno[3,4- b ][1,4]dio-xin-5-yl)-2-dodecyl-2 H -benzo[1,2,3]triazole ( M1 ) and 2,3-di(5-methylfuran-2-yl)-5,8-bis(2-(3,4-ethylenedioxythiophene))quinoxaline ( M2 ), were used for the preparation of a neutral black polymer. A black polymer P(1- co -2) was successfully achieved by the electrochemical copolymerization of the two monomers with a feed ratio of 1?:?1, and then the obtained polymer was well characterized. P(1- co -1) has a wide range of absorption in the range of 400–800 nm, which makes the polymer exhibit a deep black color in the neutral state, and a transmissive light gray color could be obtained in the oxidized state. The polymer has a low band gap of 1.20 eV. Besides, a high coloration efficiency, a fast response time, as well as high transmittance changes (more than 78%) in the near-IR region were also found with this polymer, which suggested that the polymer might be a feasible candidate for the fabrication of electrochromic devices.
机译：在该研究中，两种单体，4,7-双（2,3-二氢噻吩[3,4- B] [1,4] DiO-Xin-5-Y1）-2-十二烷基-2H-benzo [1， 2,3]三唑（M1）和2,3-DI（5-甲基呋喃-2-基）-5,8-双（2-（3,4-亚乙二氧噻吩））喹喔啉（M2）用于制备中性黑色聚合物。通过进料比的两种单体的电化学共聚成功地实现了黑色聚合物P（1- CO-2），其中进给比为1？1，然后得到了所得聚合物的特征。 P（1- CO -1）在400-800nm的范围内具有宽范围的吸收，这使得聚合物在中性状态下表现出深黑色，并且可以在氧化状态下获得透射浅灰色颜色。聚合物具有1.20 eV的低带隙。此外，该聚合物还发现了近红外地区的高着色效率，快速响应时间以及高透射率变化（超过78％），这表明聚合物可能是制造的可行候选者电致变色装置。

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