本文關鍵詞：以PDI為基礎的Acceptor-Donor共軛芳香大環(huán)分子的合成及性能研究　出處：《上海師范大學》2016年碩士論文　論文類型：學位論文

  更多相關文章： N-型電子受體材料 有機光電材料 光電轉化效率 D-A環(huán)化物 空間結構 異構體

【摘要】：近年來,有機光電材料在基礎研究和應用方面取得了突飛猛進的發(fā)展,已經成為一個較為成熟的跨學科新興領域。有機光電材料在光電器件方面得到了廣泛應用,包括有機發(fā)光二極管、有機太陽能電池、有機場效應晶體管、有機生物化學傳感器、以及有機非線性光學材料等。由于有機分子較無機材料具有密度小,價格低廉且結構的易修飾性強等優(yōu)勢,近年來在科研和工業(yè)界得到了廣泛的注意,化學家及材料學家從設計合成特殊的有機π-共軛體系出發(fā),探索其在光電功能領域內的應用,并以此為反饋指導分子設計。2008年,Jasti、Bertozzi利用順式-1,4-二甲氧基-2,5-環(huán)己二烯分子為橋梁首次成功的合成了環(huán)對苯撐類(cycloparaphenylenes,CPPs)化合物。但是CCP在可見光范圍內沒有強烈的吸收,因此其在光電器件的應用上受到限制。但這種化合物的合成方法為我們提供了一種合成環(huán)狀類化合物的策略。而這類完全共軛的兩種不同的芳香分子結合成的環(huán)狀化合物至今還沒有那個課題組合成出來過,因此,針對這種情況,我們開展了以下兩個方面的研究工作。利用合成CPP的方法,我們制備出了一種新型的環(huán)狀的共軛有機分子,它由兩個相同的電子}f體分子和另兩個相同的電子受體分子組成,其中電子給體分子是聯(lián)噻吩,受體分子是傒二酰胺衍生物。形成的大環(huán)分子具有一定尺寸的空腔,且噻吩上的硫原子朝向腔內。利用手性的高效液相色譜成功的分離出三種立體異構體,并研究了它們之間的互換現(xiàn)象。另外,這種獨特的環(huán)是一種黑的固體,在可見光范圍內由明顯的光譜吸收。DFT計算展現(xiàn)出了在光誘導下電子從聯(lián)噻吩轉導到傒二酰胺上。基于前面的研究,我們可以看出這種全新的大環(huán)分子具有獨特的光譜吸收特性,在可見光范圍內具有較強的吸收,這使得這種分子在太陽能光伏器件上具有應用的可能性。由于這種全新的共軛芳香大環(huán)分子是首次合成出。雖然我們對其空間結構及光電特性有一定了解,但對于這類以PDI為受體,其他芳香物為}f體的共軛大環(huán)分子,我們并沒有仔細研究過。為了弄清楚這類D-A型的環(huán)狀分子的成環(huán)規(guī)律、空間特性及光譜特性,我們合成了幾種共軛大環(huán)分子,并研究了它們的空間結構及光電特性。
[Abstract]:In recent years, organic optoelectronic materials have made rapid progress in basic research and application. Mechanical photovoltaic materials have been widely used in optoelectronic devices, including organic light-emitting diodes, organic solar cells, airfield effect transistors. Organic biochemical sensors and organic nonlinear optical materials. Because organic molecules have the advantages of low density, low cost and easy modification of structure. In recent years, scientific research and industry have received extensive attention, chemists and materials scientists from the design and synthesis of a special organic 蟺 -conjugate system, explore its application in the field of optoelectronic functions. In 2008, Jastig Bertozzi used cis-1, 4-dimethoxy-2 as a feedback guide for molecular design. Cycloparaphenylenes were successfully synthesized by using 5-cyclohexadiene as a bridge for the first time. CPPs) compounds. But CCP does not have strong absorption in the visible range. Therefore, its application in optoelectronic devices is limited. But the synthetic method of this kind of compound provides us with a strategy of synthesizing ring like compounds. And this kind of completely conjugated two different aromatic molecules combine to form rings. The compounds have not yet been synthesized by the research group. Therefore, in view of this situation, we have carried out the following two aspects of research. Using the method of synthesizing CPP, we have prepared a novel ring conjugated organic molecule. It consists of two identical electron} f molecules and two other identical electron acceptor molecules, in which the electron donor molecule is bithiophene. The receptor molecule is a derivative of diamide. The macrocyclic molecule has a certain size cavity and the sulfur atoms on the thiophene are oriented to the cavity. Three stereoisomers have been successfully separated by chiral high performance liquid chromatography. In addition, this unique ring is a black solid. In the visible range, the apparent spectral absorption. DFT calculations show that the electron transduces from dithiophene to diamide under light induction, based on the previous study. We can see that this new macrocyclic molecule has unique spectral absorption characteristics and strong absorption in the visible range. This makes it possible for this molecule to be used in solar photovoltaic devices, because this novel conjugated aromatic macrocyclic molecule is the first one to be synthesized, although we have some knowledge of its spatial structure and optoelectronic properties. However, we have not studied the conjugated macrocyclic molecules with PDI as the receptor and other aromatics as the} f body. In order to find out the ring-forming law of this kind of D-A ring molecules. Some conjugated macrocyclic molecules have been synthesized and their spatial structure and optoelectronic properties have been studied.
【學位授予單位】：上海師范大學
【學位級別】：碩士
【學位授予年份】：2016
【分類號】：O621.2

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1 李芳;以PDI為基礎的Acceptor-Donor共軛芳香大環(huán)分子的合成及性能研究[D];上海師范大學;2016年

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