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Continuous Synthesis of Device-Grade Semiconducting Polymers in Droplet-Based Microreactors

机译：在基于液滴的微反应器中连续合成器件级半导体聚合物

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摘要

A method is reported for the controlled synthesis of device-grade semiconducting polymers, utilizing a droplet-based microfluidic reactor. Using poly(3-hexylthiophene) (P3HT) as a test material, the reactor is shown to provide a controlled and stable environment for polymer synthesis, enabling control of molecular weight via tuning of flow conditions, reagent composition or temperature. Molecular weights of up to 92 000 Da are readily attainable, without leakage or reactor fouling. The method avoids the usual deterioration in materials quality that occurs when conventional batch syntheses are scaled from the sub-gram level to higher quantities, with a prototype five-channel reactor producing material of consistent molecular weight distribution and high regioregularity (>98%) at a rate of ≈60 g/day. The droplet-synthesized P3HT compares favorably with commercial material in terms of absorption spectrum, polydispersity, regioregularity, and crystallinity, yielding power conversion efficiencies of up to 4% in bulk heterojunction solar cells with [6,6]-phenyl-C61 -butyric acid methyl ester.
机译：报道了一种利用基于液滴的微流体反应器来控制合成装置级半导体聚合物的方法。使用聚（3-己基噻吩）（P3HT）作为测试材料，表明该反应器为聚合物合成提供了可控且稳定的环境，从而能够通过调节流动条件，试剂组成或温度来控制分子量。分子量高达92 000 Da是容易达到的，而没有泄漏或反应器结垢。该方法避免了常规的批量合成从亚克级到更高的数量时出现的通常的材料质量下降，该原型五通道反应器可生产出具有一致的分子量分布和高区域规整度（> 98％）的材料。每天约60克。液滴合成的P3HT在吸收光谱，多分散性，区域规则性和结晶度方面与商业材料相比非常理想，在具有[6,6]-苯基-C61-丁酸的整体异质结太阳能电池中，功率转换效率高达4％甲酯。

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  • 来源
    《Advanced Functional Materials》 |2013年第17期|2123-2129|共7页
  • 作者

    James H. Bannock; Siva H. Krishnadasan; Adrian M. Nightingale; Chin Pang Yau; Kevin Khaw; Daniel Burkitt; Jonathan; J. M. Halls; Martin Heeney; John C. de Mello;

  • 作者单位

    Centre for Plastic Electronics Department of Chemistry Imperial College London Exhibition Road, South Kensington London SW7 2AY, UK;

    Centre for Plastic Electronics Department of Chemistry Imperial College London Exhibition Road, South Kensington London SW7 2AY, UK;

    Centre for Plastic Electronics Department of Chemistry Imperial College London Exhibition Road, South Kensington London SW7 2AY, UK;

    Centre for Plastic Electronics Department of Chemistry Imperial College London Exhibition Road, South Kensington London SW7 2AY, UK;

    Centre for Plastic Electronics Department of Chemistry Imperial College London Exhibition Road, South Kensington London SW7 2AY, UK;

    Mello Solar Press, 2 Royal College Street, London NW1 ONH, UK;

    Mello Solar Press, 2 Royal College Street, London NW1 ONH, UK;

    Mello Solar Press, 2 Royal College Street, London NW1 ONH, UK;

    Centre for Plastic Electronics Department of Chemistry Imperial College London Exhibition Road, South Kensington London SW7 2AY, UK;

    Centre for Plastic Electronics Department of Chemistry Imperial College London Exhibition Road, South Kensington London SW7 2AY, UK;

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