基于三苯胺、喹喔啉及苯并三氮唑的可溶性共聚物的合成及其电致变色性能研究
发布时间：2018-08-11 19:22
【摘要】：有机导电聚合物已经问世几十年,在这几十年里,人们对导电聚合物的研究热度只增不减,究其原因是因为有机导电聚合物不但光电性质好、机械性能柔韧、可塑性强,而且它们可以应用在节能材料、低耗能显示器、汽车反光镜、电致变色电子皮肤、体异质结太阳能电池及半导体聚合物量子点等诸多领域。目前人们对聚合物的研究逐渐偏向于其在实际生活中的应用,但是我们认为结构新奇、性质独特聚合物的开发是必要的,也是必须的。我们知道,在聚合物领域,多用途材料的产生在很大程度上依赖于新颖的分子结构设计,特别是D-A型分子的设计。所谓的D-A型分子设计就是将具有高HOMO能级的富电子单元与低LUMO能级的缺电子单元进行组合来制备低禁带聚合物。除了获得低禁带聚合物外,D-A法对于提高聚合物的光学,电学以及机械性能都是大有裨益的。本课题的研究内容主要是以丁基三苯胺、喹喔啉和苯并三氮唑及其衍生物为前单体,采用前躯体策略,利用化学聚合的方法合成了十种新颖的可溶性共聚物,分别是PTTPA、PCTPA、PTDPQ、PTDPP、PTZQ-1、PTZQ-2、PTZQ-3、PBZQ-1、PBZQ-2和PBZQ-3,并详尽地研究了它们的电致变色性能。结果表明:D-A型的PTTPA热稳定性好,光学禁带值低(1.69 eV),在NIR区光学对比度高,响应时间快。PTDPP中N原子的引入不但可以增强受体吡啶并[3,4-b]吡嗪的吸电子能力,而且可以提高共聚物的电致变色性能。我们可以采用改变成分比例的方法来调节聚合物的光电性质,PTZQ-1、PTZQ-2和PTZQ-3在可见光区响应时间均小于0.75s,PTZQ-3在1670 nm时对比度为49.2%,响应时间为0.91s,着色效率为184.24 cm2·C-1。PBZQ-2的颜色变化涵盖了红绿蓝三种颜色,PBZQ-3的颜色变化经历了黑色过渡态,这都是很重要的电致变色特征。此外,PBZQ-1、PBZQ-2和PBZQ-3的禁带分别为2.10eV,2.11eV和2.03eV,这类中禁带(~2.0 eV)的共聚物具有很高的光伏效率和空穴迁移率,可以应用在光伏电池特别是串联电池中。
[Abstract]:Organic conductive polymers have been developed for decades. In these decades, the heat of research on conducting polymers has only increased. The reason is that organic conductive polymers not only have good optoelectronic properties, but also have flexible mechanical properties and strong plasticity. They can be used in many fields, such as energy-saving materials, low energy consumption displays, automotive mirrors, electrochromic electronic skin, bulk heterojunction solar cells and semiconductor polymer quantum dots. At present, the research of polymer is gradually inclined to its application in real life, but we think that it is necessary and necessary to develop polymer with novel structure and unique properties. We know that in the polymer field, the production of multi-purpose materials depends largely on novel molecular structure design, especially the design of D-A molecule. The so-called D-A molecule design is to combine the electron-rich unit with high HOMO level and the electron deficient unit with low LUMO level to prepare low band gap polymer. In addition to obtaining low band gap polymers, D-A method is helpful to improve the optical, electrical and mechanical properties of polymers. In this paper, ten novel soluble copolymers were synthesized using Ding Ji trianiline, quinoxaline, benzotriazole and their derivatives as premonomers. PTZQ-1 PTZQ-2 PTZQ-2 PTZQ-1PZQ-2 and PBZQ-1 PBZQ-2 and PBZQ-3 were used to study their electrochromic properties in detail. The results show that PTZQ-1, PTZQ-1, PTZQ-2 and PBZQ-3 are PTZQ-1, PTZQ-1, PTZQ-2 and PBZQ-3, respectively, and their electrochromic properties are studied in detail. The results show that the PTTPA of type 1: D-A has good thermal stability and low optical band gap (1.69 eV), has high optical contrast in the NIR region and the fast response time. The introduction of N atom in NIR can not only enhance the electron absorption ability of the receptor Pyridino [3PERO4-b] pyridine] pyrazine. Moreover, the electrochromic properties of the copolymers can be improved. We can adjust the optoelectronic properties of the polymer by changing the composition ratio. The response time of PTZQ-1 PTZQ-2 and PTZQ-3 in visible region is less than 0.75sPTZQ-3 at 1670 nm, the contrast is 49.2 and the response time is 0.91s, and the coloring efficiency is 184.24 cm2 C-1.PBZQ-2. The color changes of PBZQ-3 with red, green and blue have undergone a black transition state. These are important electrochromic features. In addition, the forbidden band of PBZQ-1C PBZQ-2 and PBZQ-3 are 2.10eV (2.11eV) and 2.03eV respectively. The copolymers have high photovoltaic efficiency and hole mobility, which can be used in photovoltaic cells, especially in series cells.
【学位授予单位】：聊城大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：O633.5
[Abstract]:Organic conductive polymers have been developed for decades. In these decades, the heat of research on conducting polymers has only increased. The reason is that organic conductive polymers not only have good optoelectronic properties, but also have flexible mechanical properties and strong plasticity. They can be used in many fields, such as energy-saving materials, low energy consumption displays, automotive mirrors, electrochromic electronic skin, bulk heterojunction solar cells and semiconductor polymer quantum dots. At present, the research of polymer is gradually inclined to its application in real life, but we think that it is necessary and necessary to develop polymer with novel structure and unique properties. We know that in the polymer field, the production of multi-purpose materials depends largely on novel molecular structure design, especially the design of D-A molecule. The so-called D-A molecule design is to combine the electron-rich unit with high HOMO level and the electron deficient unit with low LUMO level to prepare low band gap polymer. In addition to obtaining low band gap polymers, D-A method is helpful to improve the optical, electrical and mechanical properties of polymers. In this paper, ten novel soluble copolymers were synthesized using Ding Ji trianiline, quinoxaline, benzotriazole and their derivatives as premonomers. PTZQ-1 PTZQ-2 PTZQ-2 PTZQ-1PZQ-2 and PBZQ-1 PBZQ-2 and PBZQ-3 were used to study their electrochromic properties in detail. The results show that PTZQ-1, PTZQ-1, PTZQ-2 and PBZQ-3 are PTZQ-1, PTZQ-1, PTZQ-2 and PBZQ-3, respectively, and their electrochromic properties are studied in detail. The results show that the PTTPA of type 1: D-A has good thermal stability and low optical band gap (1.69 eV), has high optical contrast in the NIR region and the fast response time. The introduction of N atom in NIR can not only enhance the electron absorption ability of the receptor Pyridino [3PERO4-b] pyridine] pyrazine. Moreover, the electrochromic properties of the copolymers can be improved. We can adjust the optoelectronic properties of the polymer by changing the composition ratio. The response time of PTZQ-1 PTZQ-2 and PTZQ-3 in visible region is less than 0.75sPTZQ-3 at 1670 nm, the contrast is 49.2 and the response time is 0.91s, and the coloring efficiency is 184.24 cm2 C-1.PBZQ-2. The color changes of PBZQ-3 with red, green and blue have undergone a black transition state. These are important electrochromic features. In addition, the forbidden band of PBZQ-1C PBZQ-2 and PBZQ-3 are 2.10eV (2.11eV) and 2.03eV respectively. The copolymers have high photovoltaic efficiency and hole mobility, which can be used in photovoltaic cells, especially in series cells.
【学位授予单位】：聊城大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：O633.5
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