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電致變色性能研究
發(fā)布時間：2018-08-11 19:22
【摘要】：有機(jī)導(dǎo)電聚合物已經(jīng)問世幾十年,在這幾十年里,人們對導(dǎo)電聚合物的研究熱度只增不減,究其原因是因?yàn)橛袡C(jī)導(dǎo)電聚合物不但光電性質(zhì)好、機(jī)械性能柔韌、可塑性強(qiáng),而且它們可以應(yīng)用在節(jié)能材料、低耗能顯示器、汽車反光鏡、電致變色電子皮膚、體異質(zhì)結(jié)太陽能電池及半導(dǎo)體聚合物量子點(diǎn)等諸多領(lǐng)域。目前人們對聚合物的研究逐漸偏向于其在實(shí)際生活中的應(yīng)用,但是我們認(rèn)為結(jié)構(gòu)新奇、性質(zhì)獨(dú)特聚合物的開發(fā)是必要的,也是必須的。我們知道,在聚合物領(lǐng)域,多用途材料的產(chǎn)生在很大程度上依賴于新穎的分子結(jié)構(gòu)設(shè)計(jì),特別是D-A型分子的設(shè)計(jì)。所謂的D-A型分子設(shè)計(jì)就是將具有高HOMO能級的富電子單元與低LUMO能級的缺電子單元進(jìn)行組合來制備低禁帶聚合物。除了獲得低禁帶聚合物外,D-A法對于提高聚合物的光學(xué),電學(xué)以及機(jī)械性能都是大有裨益的。本課題的研究內(nèi)容主要是以丁基三苯胺、喹喔啉和苯并三氮唑及其衍生物為前單體,采用前軀體策略,利用化學(xué)聚合的方法合成了十種新穎的可溶性共聚物,分別是PTTPA、PCTPA、PTDPQ、PTDPP、PTZQ-1、PTZQ-2、PTZQ-3、PBZQ-1、PBZQ-2和PBZQ-3,并詳盡地研究了它們的電致變色性能。結(jié)果表明:D-A型的PTTPA熱穩(wěn)定性好,光學(xué)禁帶值低(1.69 eV),在NIR區(qū)光學(xué)對比度高,響應(yīng)時間快。PTDPP中N原子的引入不但可以增強(qiáng)受體吡啶并[3,4-b]吡嗪的吸電子能力,而且可以提高共聚物的電致變色性能。我們可以采用改變成分比例的方法來調(diào)節(jié)聚合物的光電性質(zhì),PTZQ-1、PTZQ-2和PTZQ-3在可見光區(qū)響應(yīng)時間均小于0.75s,PTZQ-3在1670 nm時對比度為49.2%,響應(yīng)時間為0.91s,著色效率為184.24 cm2·C-1。PBZQ-2的顏色變化涵蓋了紅綠藍(lán)三種顏色,PBZQ-3的顏色變化經(jīng)歷了黑色過渡態(tài),這都是很重要的電致變色特征。此外,PBZQ-1、PBZQ-2和PBZQ-3的禁帶分別為2.10eV,2.11eV和2.03eV,這類中禁帶(~2.0 eV)的共聚物具有很高的光伏效率和空穴遷移率,可以應(yīng)用在光伏電池特別是串聯(lián)電池中。
[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.
【學(xué)位授予單位】：聊城大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：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.
【學(xué)位授予單位】：聊城大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：O633.5
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