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首页> 外文期刊>Advanced energy materials >Nitrile-Substituted QA Derivatives: New Acceptor Materials for Solution-Processable Organic Bulk Heterojunction Solar Cells
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Nitrile-Substituted QA Derivatives: New Acceptor Materials for Solution-Processable Organic Bulk Heterojunction Solar Cells

机译：腈取代的QA衍生物：溶液可加工的有机体异质结太阳能电池的新型受体材料

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摘要

The development of non-fullerene-based electron acceptors (especially organic molecules with sufficient absorption property within the solar spectrum region) for bulk-heterojunction (BHJ) organic solar cells (OSCs) is an important issue for the achievement of high photoconversion efficiency. In this contribution, a new class of organic acceptors di-cyan substituted quinacridone derivatives (DCN-nCQA, n = 4, 6 and 8) for BHJ solar cells was designed and synthesized. DCN-nCQA molecules possess facile synthesis, solution processability, visible and near-IR light absorption and relatively stable characteristics. The DCN-8CQA molecule exhibited a proper LUMO energy level (–4.1 eV), small bandgap (1.8 eV) and moderate electron mobility (10−4 cm2 V−1 S−1), suggesting that this molecule is an ideal acceptor material for the classical donor material regio-regular poly (3-hexylthiophene) (P3HT). A photovoltaic device with a structure of [ITO/PEDOT:PSS/P3HT:DCN-8CQA/LiF/Al] displayed a power conversion efficiency of 1.57% and a fill factor of 57% under 100 mW cm−2 AM 1.5G simulated solar illumination. The DCN-nCQA molecules showed remarkable absorption in the region from 650 to 700 nm, where P3HT has a weak absorption promoting overlap with the solar spectrum and potentially improving the performance of the solar cell.
机译：用于主体-异质结（BHJ）有机太阳能电池（OSC）的非富勒烯基电子受体（特别是在太阳光谱区域内具有足够吸收特性的有机分子）的开发是实现高光转换效率的重要问题。在此贡献中，设计并合成了用于BHJ太阳能电池的新型有机受体二氰基取代的喹ac啶酮衍生物（DCN-nCQA，n = 4、6和8）。 DCN-nCQA分子具有易于合成，溶液可加工性，可见光和近红外光吸收以及相对稳定的特性。 DCN-8CQA分子表现出适当的LUMO能级（–4.1 eV），小带隙（1.8 eV）和适度的电子迁移率（10-4 cm2 V-1 S-1），表明该分子是理想的受体材料经典供体材料区域规则的聚（3-己基噻吩）（P3HT）。结构为[ITO / PEDOT：PSS / P3HT：DCN-8CQA / LiF / Al]的光伏器件在100 mW cm-2 AM 1.5G模拟太阳能下显示出1.57％的功率转换效率和57％的填充系数照明。 DCN-nCQA分子在650至700 nm范围内显示出显着的吸收，其中P3HT的吸收较弱，从而促进了与太阳光谱的重叠，并有可能改善太阳能电池的性能。

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  • 来源
    《Advanced energy materials》 |2011年第3期|1-9|共9页
  • 作者

    Tianlei Zhou; Tao Jia; Bonan Kang; Fenghong Li; Mats Fahlman; Yue Wang;

  • 作者单位

    State Key Laboratory of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun 130012 P. R. China;

    State Key Laboratory of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun 130012 P. R. China;

    State Key Laboratory on Integrated Optoelectronics College of Electronic Science and Engineering Jilin University Changchun 130012 P. R. China;

    State Key Laboratory of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun 130012 P. R. China;

    Department of Physics Chemistry and Biology LinkÖping University 581 83 LinkÖping Sweden;

    State Key Laboratory of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun 130012 P. R. China;

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

    quinacridone; acceptor; organic solar cell; bulk hetero-junction;

    机译：喹ac啶酮;受体;有机太阳能电池;本体异质结;

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