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EXPLORATION OF THIOPHENE-BASED DONOR-DONOR AND DONOR-ACCEPTOR CONJUGATED OLIGOMERS

机译:基于噻吩的施主-施主和受主-受体共轭低聚物的研究

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摘要

Conjugated polymers are one of the leading technologies in electronic materials research. In this work we investigate thiophene-based donor-donor (D-D) and donor-acceptor (D-A) conjugated oligomers for future application towards polymer solar cells (PSCs).udBeginning from computational studies, our group targets specific monomers that show promise in both bandgap and solar cell efficiency. For this research, we have found a novel alkyl-nitrothiophene (2-bromo-5-cyano-3-hexyl-4-nitrothiophene, NT) monomer as well as a unique D-D combination of propylenedioxythiophene (ProDOT) and isothianapthene (ITN). In both of these cases, we found that we can tune the tetramer bandgap (in both D-D and D-A systems) simply by changing the order of monomers (rather than changing the identity of the monomers). Horner-Wadsworth-Emmons (HWE) was chosen to provide the ability to individually couple monomers, allowing us to synthesize sequenced oligomers.udThe synthesis of the novel alkyl-NT monomer was successful and progress towards additional monomers necessary for HWE coupling was made. A test Stille coupling towards the synthesis of the ProDOT-ITN oligomer was also attempted.
机译:共轭聚合物是电子材料研究中的领先技术之一。在这项工作中,我们研究了基于噻吩的供体-供体(DD)和供体-受体(DA)共轭低聚物,以备将来应用于聚合物太阳能电池(PSC)。带隙和太阳能电池效率。对于这项研究,我们发现了一种新型的烷基-硝基噻吩(2-溴-5-氰基-3-己基-4-硝基噻吩,NT)单体,以及丙二氧基噻吩(ProDOT)和异噻吩并蒽(ITN)的独特D-D组合。在这两种情况下,我们发现仅通过改变单体的顺序(而不是改变单体的身份)就可以调节四聚体带隙(在D-D和D-A系统中)。选择Horner-Wadsworth-Emmons(HWE)来提供单独偶联单体的能力,从而使我们能够合成测序的低聚物。 ud新型烷基-NT单体的合成成功,并朝着HWE偶联所需的其他单体的方向发展。还尝试了测试Stille耦合到ProDOT-ITN低聚物的合成。

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    Owens Steven G.;

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  • 年度 2013
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