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首页> 外文期刊>Journal of industrial and engineering chemistry >Effect of side chains on solubility and morphology of poly(benzodithiohene-alt-alkylbithiophene) in organic photovoltaics
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Effect of side chains on solubility and morphology of poly(benzodithiohene-alt-alkylbithiophene) in organic photovoltaics

机译：侧链对有机光伏电池中聚（苯并二硫代-烷基-烷基-噻吩基）的溶解度和形态的影响

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摘要

It was reported that the side chains play especially an important role in enhancing physical properties and energy levels. Polythiophene based on benzodithiophene has excellent carrier mobility, but high HOMO level. We synthesized polythiophenes, PBDTBiTh(2EH) and PBDTBiTh(12C), were polymerized using the Stille coupling reaction and had thiophene with a 2-ethylhexyl or n-dodecyl side chain. Upon introducing the 2-ethylhexyl side chain, the absorption coefficients of the monomers and polymers were enhanced. Also, the edge-on orientation was fortified and the HOMO level was decreased to -5.37 eV. PBDTBiTh(2EH) showed a power conversion efficiency (PCE) of 2.1%, which was double that of PBDTBiTh(12C). (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译：据报道，侧链在增强物理性能和能级方面特别重要。基于苯并二噻吩的聚噻吩具有出色的载流子迁移率，但HOMO水平较高。我们合成了聚噻吩PBDTBiTh（2EH）和PBDTBiTh（12C），使用Stille偶联反应进行了聚合，并形成了带有2-乙基己基或正十二烷基侧链的噻吩。引入2-乙基己基侧链后，单体和聚合物的吸收系数增加。而且，加强了边缘上的取向，并且HOMO能级降低至-5.37eV。 PBDTBiTh（2EH）的功率转换效率（PCE）为2.1％，是PBDTBiTh（12C）的两倍。 （C）2015韩国工业和工程化学学会。由Elsevier B.V.发布。保留所有权利。

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