Impact of Synthetic Route on Photovoltaic Properties of Isoindigo-Containing Conjugated Polymers,Macromolecular Chemistry and Physics

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Impact of Synthetic Route on Photovoltaic Properties of Isoindigo-Containing Conjugated Polymers
Macromolecular Chemistry and Physics ( IF 2.5 ) Pub Date : 2021-06-10 , DOI: 10.1002/macp.202100136
Marina M. Tepliakova ₁ , Ilya E. Kuznetsov ₂ , Irina A. Avilova ₂ , Keith J. Stevenson ₁ , Alexander V. Akkuratov ₂

Affiliation

Herein, the synthesis of a novel isoindigo-based conjugated polymer using Suzuki and Stille polycondensation reactions is reported. It is shown that the polymer obtained using various reactions possesses different performance in photovoltaic devices. In particular, polymers synthesized using Suzuki and Stille polycondensation demonstrate 2.7% and 4.1% efficiency in organic solar cells, and 12.6% and 15.1% in perovskite solar cells, respectively. The observed difference in the performances of devices is attributed to the appearance of defects in the polymer obtained via Suzuki reaction. Using high-performance liquid chromatography it is demonstrated that the origin of the polymer quality deterioration is the poor stability of isoindigo-based monomer under conditions of Suzuki polycondensation. Revealing this aspect allows one to figure out a more effective approach for the synthesis of high-quality isoindigo-based polymers for organic electronics.

中文翻译：

合成路线对含异靛蓝共轭聚合物光伏性能的影响

本文报道了使用 Suzuki 和 Stille 缩聚反应合成一种新型异靛蓝基共轭聚合物。结果表明，使用各种反应获得的聚合物在光伏器件中具有不同的性能。特别是，使用 Suzuki 和 Stille 缩聚反应合成的聚合物在有机太阳能电池中的效率分别为 2.7% 和 4.1%，在钙钛矿太阳能电池中分别为 12.6% 和 15.1%。观察到的器件性能差异归因于通过 Suzuki 反应获得的聚合物中出现缺陷。使用高效液相色谱法证明，聚合物质量下降的根源是异靛类单体在铃木缩聚条件下的稳定性差。

更新日期：2021-08-07

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