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首页> 外文期刊>Advanced Functional Materials >Quadrupole Moment Induced Morphology Control Via a Highly Volatile Small Molecule in Efficient Organic Solar Cells
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Quadrupole Moment Induced Morphology Control Via a Highly Volatile Small Molecule in Efficient Organic Solar Cells

机译：高杆力矩诱导通过高效有机太阳能电池中高挥发的小分子进行形态控制

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摘要

Developing novel solid additives has been regarded as a promising strategy to achieve highly efficient organic solar cells with good stability and reproducibility. Herein, a small molecule, 2,2 '-(perfluoro-1,4-phenylene)dithiophene (DTBF), designed with high volatility and a strong quadrupole moment, is applied as a solid additive to implement active layer morphology control in organic solar cells. Systematic theory simulations have revealed the charge distribution of DTBF and its analog and their non-covalent interaction with the active layer materials. Benefitting from the more vital charge-quadrupole interaction, the introduction, and volatilization of DTBF effectively induced more regular and condensed molecular packing in the active layer, leading to enhanced photoelectric properties. Thus, high efficiency of over 17% is obtained in the DTBF-processed devices, which is higher than that of the control devices. Further application of DTBF in different active layer systems contributed to a deeper comprehension of this type of additive. This study highlights a facile approach to optimizing the active layer morphology by finely manipulating the quadrupole moment of volatile solid additives.
机译：开发新型固体添加剂被认为是实现高效有机太阳能电池具有良好稳定性和再现性的有希望的策略。在此，具有高挥发性和强血管矩设计的小分子，2,2' - （全氟-1,4-亚苯基）二噻吩（DTBF）作为固体添加剂，以在有机太阳能中实现有源层形态控制细胞。系统理论模拟揭示了DTBF的电荷分布及其与活性层材料的非共价相互作用。从更重要的电荷 - 四极相互作用，引入和挥发的DTBF的引入和挥发有效地诱导了活性层中的更规则和冷凝的分子包装，导致增强的光电性能。因此，在DTBF处理的设备中获得高效率超过17％，其高于控制装置的装置。进一步在不同有源层系统中应用DTBF的应用有助于对这种类型的添加剂的更深理解。本研究突出了通过细化挥发性固体添加剂的四极矩优化活性层形态的容易方法。

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  • 来源
    《Advanced Functional Materials》 |2021年第18期|2010535.1-2010535.9|共9页
  • 作者

    Yu Runnan; Yao Huifeng; Xu Ye; Li Jiayao; Hong Ling; Zhang Tao; Cui Yong; Peng Zhongxiang; Gao Mengyuan; Ye Long; Tan Zhanao; Hou Jianhui;

  • 作者单位

    Beijing Univ Chem Technol Coll Mat Sci & Engn Beijing Adv Innovat Ctr Soft Matter Sci & Engn Beijing 100029 Peoples R China;

    Chinese Acad Sci Inst Chem Beijing Natl Lab Mol Sci State Key Lab Polymer Phys & Chem Beijing 100190 Peoples R China;

    Chinese Acad Sci Inst Chem Beijing Natl Lab Mol Sci State Key Lab Polymer Phys & Chem Beijing 100190 Peoples R China;

    Chinese Acad Sci Inst Chem Beijing Natl Lab Mol Sci State Key Lab Polymer Phys & Chem Beijing 100190 Peoples R China;

    Chinese Acad Sci Inst Chem Beijing Natl Lab Mol Sci State Key Lab Polymer Phys & Chem Beijing 100190 Peoples R China;

    Chinese Acad Sci Inst Chem Beijing Natl Lab Mol Sci State Key Lab Polymer Phys & Chem Beijing 100190 Peoples R China;

    Chinese Acad Sci Inst Chem Beijing Natl Lab Mol Sci State Key Lab Polymer Phys & Chem Beijing 100190 Peoples R China;

    Tianjin Univ Sch Mat Sci & Engn Tianjin 300350 Peoples R China;

    Tianjin Univ Sch Mat Sci & Engn Tianjin 300350 Peoples R China;

    Tianjin Univ Sch Mat Sci & Engn Tianjin 300350 Peoples R China;

    Beijing Univ Chem Technol Coll Mat Sci & Engn Beijing Adv Innovat Ctr Soft Matter Sci & Engn Beijing 100029 Peoples R China;

    Chinese Acad Sci Inst Chem Beijing Natl Lab Mol Sci State Key Lab Polymer Phys & Chem Beijing 100190 Peoples R China;

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

    morphology control; organic solar cells; quadrupole moment; solid additives; volatility;

    机译：形态学控制;有机太阳能电池;四轮轴矩;固体添加剂;波动性;

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