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Improving Structural Order for a High-Performance Diketopyrrolopyrrole-Based Polymer Solar Cell with a Thick Active Layer

机译:改善具有厚活性层的高性能基于二酮吡咯并吡咯的聚合物太阳能电池的结构顺序

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摘要

A series of low-bandgap polymers based on thienyl benzodithiophene (BDTT) and furan-substituted diketopyrrolopyrrole (FDPP) units with different side chains are presented. By replacing the branched ethylhexyl group on the FDPP unit with linear side chains, the structural order and carrier mobility of the modified polymers are enhanced accordingly. The power conversion efficiencies (PCE) of single-junction devices based on polymers of this series are improved from ≈5% to ≈7%. More importantly, devices made from the modified polymers show excellent photovoltaic performance with a thick active layer of up to 360 nm, a very promising characteristic for the industrial implementation of polymer solar cell devices.
机译:提出了一系列基于噻吩苯并二噻吩(BDTT)和呋喃取代的二酮吡咯并吡咯(FDPP)单元的具有不同侧链的低带隙聚合物。通过用线性侧链取代FDPP单元上的支链乙基己基,改性聚合物的结构顺序和载流子迁移率相应地提高。基于该系列聚合物的单结器件的功率转换效率(PCE)从5%提升至7%。更重要的是,由改性聚合物制成的器件显示出出色的光伏性能,具有高达360 nm的厚有源层,这对于聚合物太阳能电池器件的工业实现是非常有希望的特性。

著录项

  • 来源
    《Advanced energy materials》 |2014年第5期|1-8|共8页
  • 作者单位

    Department of Materials Science and Engineering University of California Los Angeles Los Angeles CA USA;

    Department of Materials Science and Engineering University of California Los Angeles Los Angeles CA USA;

    Materials Science Division Argonne National Laboratory Argonne IL USA;

    Institute for Molecular Engineering The University of Chicago Chicago IL USA;

    Department of Materials Science and Engineering University of California Los Angeles Los Angeles CA USA;

    Department of Materials Science and Engineering University of California Los Angeles Los Angeles CA USA;

    Department of Materials Science and Engineering University of California Los Angeles Los Angeles CA USA;

    Department of Materials Science and Engineering University of California Los Angeles Los Angeles CA USA;

    Department of Materials Science and Engineering University of California Los Angeles Los Angeles CA USA;

    X-Ray Science Division Advanced Photon Source Argonne National Laboratory Argonne IL USA;

    Advanced Light Source Lawrence Berkeley National Laboratory Berkeley CA USA;

    Department of Materials Science and Engineering University of California Los Angeles Los Angeles CA USA;

    Department of Materials Science and Engineering University of California Los Angeles Los Angeles CA USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    thick active layers; diketopyrrolopyrrole; thienylbenzodithiophene; polymer side chains; high carrier mobility;

    机译:厚的活性层;二酮吡咯并吡咯;噻吩基苯并二噻吩;聚合物侧链;高载流子迁移率;

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