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Efficient Polymer Solar Cells with a High Open Circuit Voltage of 1 Volt

机译:1伏特高开路电压的高效聚合物太阳能电池

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摘要

A series of polymers containing benzo[1 ,2-b:4,5-b']dithiophene and N-alkylthieno[3,4-c]pyrrole-4,6-dione are designed. By incorporating different alkylthienyl side chains, the fill factor (FF) and open circuit voltage (V_(oc)) of the copolymers are further improved. The experimental results and theoretical calculations show that the size and topology of the side chains can influence the polymer solubility, energy levels, and intermolecular packing by altering the molecular coplanarity. As a result of improved morphology and fine-tuned energy levels, an increased FF and a high V_(oc) of 1.00 V are achieved, as well as a power conversion efficiency of 6.17%, which is the highest efficiency ever reported for polymer solar cells with a V_(oc) over 1 V.
机译:设计了一系列含有苯并[1,2-b:4,5-b']二噻吩和N-烷基噻吩并[3,4-c]吡咯-4,6-二酮的聚合物。通过引入不同的烷基噻吩基侧链,可进一步改善共聚物的填充系数(FF)和开路电压(V_(oc))。实验结果和理论计算表明,侧链的大小和拓扑结构可通过改变分子的共面性来影响聚合物的溶解度,能级和分子间堆积。由于改善了形貌和微调了能级,因此实现了FF的增加和1.00 V的高V_(oc)以及6.17%的功率转换效率,这是有史以来聚合物太阳能的最高效率V_(oc)超过1 V的单元。

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  • 来源
    《Advanced Functional Materials》 |2013年第7期|885-892|共8页
  • 作者单位

    Institute of Functional Nano &. Soft Materials (FUNSOM) Soochow University 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, China;

    Institute of Functional Nano &. Soft Materials (FUNSOM) Soochow University 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, China;

    Institute of Functional Nano &. Soft Materials (FUNSOM) Soochow University 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, China;

    Institute of Functional Nano &. Soft Materials (FUNSOM) Soochow University 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, China;

    Institute of Functional Nano &. Soft Materials (FUNSOM) Soochow University 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, China;

    Institute of Functional Nano &. Soft Materials (FUNSOM) Soochow University 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, China;

    Institute of Functional Nano &. Soft Materials (FUNSOM) Soochow University 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, China;

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