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首页> 外文期刊>Advanced Functional Materials >Morphology of a Ternary Blend Solar Cell Based on Small Molecule: Conjugated Polymer: Fullerene Fabricated by Blade Coating
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Morphology of a Ternary Blend Solar Cell Based on Small Molecule: Conjugated Polymer: Fullerene Fabricated by Blade Coating

机译：基于小分子的三元共混太阳能电池的形态：共轭聚合物：叶片涂层制备富勒烯

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摘要

Here, conjugated polymer is added as third component to tune the solution viscosity, morphology, and function of small molecule (SM) based bulk-hetero-junction (BHJ) solar cells, which are fabricated using blade coating. Novel information about the effect of blade coating speed on the nanoscale morphology and function of ternary blend solar cells is provided. The crystal sizes increase with an increase of coating speed for both binary and ternary blends, while the addition of the third component tends to favor smaller SM crystal grains and improves the connectivity of SM crystals. Small angle neutron scattering experiments provide the first clear experimental evidence that the addition of the third component would significantly impact the fullerene phase separation, which is crucial for bimolecular recombination and charge transport. It shows that for both binary and ternary blends, the concentration and sizes of [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) aggregates increase with an increase of coating speed, while addition of third component does not affect the volume fraction of PCBM aggregates but impacts the size of PCBM aggregates. It is demonstrated that the judicious selection of blade coating speed and addition of conjugated polymer optimize the morphology of SM-BHJ, providing guidelines for high performance SM-BHJs from roll-to-roll production.
机译：在这里，添加共轭聚合物作为第三种成分，以调节溶液粘度，形态和基于小分子（SM）的大体积异质结（BHJ）太阳能电池的功能，这些太阳能电池是使用叶片涂层制造的。提供了有关叶片涂布速度对三元共混太阳能电池的纳米级形态和功能的影响的新信息。对于二元和三元共混物，晶体尺寸随着涂覆速度的增加而增加，而第三组分的加入倾向于有利于较小的SM晶粒并改善SM晶体的连接性。小角中子散射实验提供了第一个明确的实验证据，即添加第三种成分会显着影响富勒烯相分离，这对于双分子重组和电荷传输至关重要。结果表明，对于二元和三元共混物，[6,6]-苯基-C61-丁酸甲酯（PCBM）聚集体的浓度和尺寸均随着涂覆速度的增加而增加，而添加第三种组分则不会影响涂覆速度。 PCBM聚集体的体积分数，但会影响PCBM聚集体的大小。结果表明，明智地选择叶片涂布速度和添加共轭聚合物可优化SM-BHJ的形态，从而为卷对卷生产的高性能SM-BHJ提供指导。

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  • 来源
    《Advanced Functional Materials》 |2017年第40期|1703268.1-1703268.10|共10页
  • 作者

    Wu Xiaomin; Lan Shuqiong; Zhang Guocheng; Chen Qizhen; Chen Huipeng; Guo Tailiang;

  • 作者单位

    Fuzhou Univ, Natl & Local United Engn Lab Flat Panel Display T, Inst Optoelect Display, Fuzhou 350002, Fujian, Peoples R China;

    Fuzhou Univ, Natl & Local United Engn Lab Flat Panel Display T, Inst Optoelect Display, Fuzhou 350002, Fujian, Peoples R China;

    Fuzhou Univ, Natl & Local United Engn Lab Flat Panel Display T, Inst Optoelect Display, Fuzhou 350002, Fujian, Peoples R China|Fujian Univ Technol, Coll Informat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China;

    Fuzhou Univ, Natl & Local United Engn Lab Flat Panel Display T, Inst Optoelect Display, Fuzhou 350002, Fujian, Peoples R China;

    Fuzhou Univ, Natl & Local United Engn Lab Flat Panel Display T, Inst Optoelect Display, Fuzhou 350002, Fujian, Peoples R China;

    Fuzhou Univ, Natl & Local United Engn Lab Flat Panel Display T, Inst Optoelect Display, Fuzhou 350002, Fujian, Peoples R China;

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

    blade coatings; fullerene phase separation; neutron scattering; organic photovoltaics; ternary blend solar cells;

    机译：叶片涂层;富勒烯相分离;中子散射;有机光伏;三元混合太阳能电池;

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