光子晶体结构电致变色材料的制备及其电致变色性能研究

发布时间：2018-06-08 08:31

本文选题：电致变色 + 光子晶体　；参考：《北京服装学院》2016年硕士论文

【摘要】：电致变色材料由于其独特的光-电特性,在显示器件、智能窗、电子纸、军事伪装、信息储存等方面有着广泛的应用前景。光子晶体独特的操控光的能力使得它可以控制光子的产生和光的传播。本文为了提高电致变色材料的电致变色性能,将光子晶体结构引入到普鲁士蓝(PB)和聚3,4-乙撑二氧噻吩(PEDOT)中,进行了以下研究:1.合成了单分散的二氧化硅微球并制备得到光子晶体。以此为模板制备了核-壳结构的SiO2@PEDOT光子晶体薄膜。SiO2@PEDO T光子晶体的循环伏安性能与纯PEDOT大致一样,最大对比度增加了12.4%;并且着色时间变短。2.以SiO2光子晶体为模板通过电化学沉积法得到核-壳结构的SiO2@PB光子晶体薄膜。所得SiO2@PB光子晶体的循环伏安性能比纯PB有所提高,最大对比度增加了17%;并且响应时间大大变短。3.制备了四种不同粒径(173 nm、242 nm、290 nm和318 nm)的PS微球,自组装得到了红色、橙色、绿色和蓝色四种颜色的PS光子晶体。通过电化学聚合得到了四种PS@PEDOT的复合材料,测试发现PS@PEDOT复合薄膜比纯PEDO T薄膜的电致变色性能要好,对比度增加。其中PS@PEDOT290复合薄膜的电致变色性能最好,对比度达到了34%,且褪色时间缩短。4.去除PS微球得到反蛋白石结构的PEDO T薄膜,性能测试发现,孔径最小的反蛋白石结构PEDOT薄膜的有序性最好,循环伏安性能变好。四种薄膜的对比度都有所增加,最高值达到36%,但是响应时间增长。本文将光子晶体结构应用到电致变色材料中,得到的复合薄膜的氧化还原能力都有所增强,对比度增加,颜色鲜艳,这些结果表明引入光子晶体结构会提高电致变色材料的电化学性能,拓展了电致变色材料的实际应用能力。
[Abstract]:Electrochromic materials have been widely used in display devices, smart windows, electronic paper, military camouflage and information storage due to their unique photo-electric properties. The unique ability of photonic crystals to manipulate light allows it to control the generation and propagation of photons. In order to improve the electrochromic properties of electrochromic materials, the photonic crystal structure was introduced into the PBs of Prussian blue and the PEDOT of the poly (3o 4- ethylenedioxythiophene). The following studies were carried out: 1. Monodisperse silica microspheres were synthesized and photonic crystals were prepared. The core-shell structure PEDOT photonic crystal thin film. SiO2 @ PEDO T photonic crystal has the same cyclic voltammetry performance as pure PEDOT, and the maximum contrast is increased by 12.4and the coloring time is shorter. 2. SiO2PB thin films with core-shell structure were obtained by electrochemical deposition of Sio _ 2 photonic crystals. The cyclic voltammetry performance of the SiO2DB photonic crystal is improved compared with that of pure PB, the maximum contrast increases by 17%, and the response time is much shorter than that of pure PB, and the response time is much shorter than that of pure PB. Four kinds of PS microspheres with different diameters (173nm ~ (2) nm ~ (242) nm ~ (-1) and (318 nm) were prepared. The PS photonic crystals of red, orange, green and blue colors were obtained by self-assembly. Four kinds of PS @ PEDOT composites were obtained by electrochemical polymerization. It was found that the photochromic properties and contrast of PS@ PEDOT composite films were better than those of pure PEDOT films. The PS @ PEDOT290 composite film has the best electrochromic performance with a contrast of 34 and a shorter fading time of .4. The antiopal structure PEDOT thin films were obtained by removing PS microspheres. It was found that the antiopal structure PEDOT thin films with the smallest pore size had the best order and the cyclic voltammetry properties were better. The contrast of the four films increased, reaching a maximum of 36, but the response time increased. In this paper, the photonic crystal structure is applied to electrochromic materials. The redox ability of the composite films is enhanced, the contrast is increased, and the color is bright. These results show that the introduction of photonic crystal structure can improve the electrochemical performance of electrochromic materials and expand the practical application ability of electrochromic materials.
【学位授予单位】：北京服装学院
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TB381;TB383.2

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