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首页> 外文期刊>Advanced Functional Materials >Hot-Casting Boosts Efficiency of Halogen-Free Solvent Processed Non-Fullerene Organic Solar Cells
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Hot-Casting Boosts Efficiency of Halogen-Free Solvent Processed Non-Fullerene Organic Solar Cells

机译：热铸造助力效率卤素溶剂加工的非富勒烯有机太阳能电池

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摘要

Despite the substantial climb of the power conversion efficiency (PCE) of organic solar cells (OSCs), the majority of processing solvent remains halogenated and stand as a critical issue for commercialization. Herein, a halogen-free solvent system consisting of toluene (Tol) and 1-phenylnaphthalene (PN) is used to replace the traditional halogenated chloroform (CF) and1-chloronaphthalene (CN) for the processing of the PM6:M36 OSC, reducing the maximum PCE from 15.0% to 13.3%. Hot-casting is demonstrated to boost the maximum PCE of halogen-free solvents processed OSCs back to 15.2%. The preheated substrate fastens the evaporation of Tol and enables similar film-forming kinetics to CF, resulting in the inhibition of immoderate molecular aggregation and excessive phase separation. Ternary OSCs, with either another donor or acceptor as the third component, can further improve device PCE to 15.8%, confirming the versatile photovoltaic systems that this hot-casting method can be applied to. Encouragingly, the hot-casting processed binary and ternary OSCs also exhibit retained storage stability. Therefore, hot-casting is demonstrated as a superior strategy to fabricate OSCs without efficiency and stability loss using halogen-free solvents.
机译：尽管的有机太阳能电池（OSC）的功率转换效率（PCE）的实质爬升，多数处理溶剂遗体卤化和站作为商业化的关键问题。在此，自由甲苯（TOL）和1-苯基萘（PN）一个不含卤素的溶剂系统是用来取代传统的卤化氯仿（CF）AND1氯萘（CN）为PM6的处理：M36 OSC，减少了最大PCE从15.0％至13.3％。热铸造证明，以提高自由卤素的溶剂处理的OSC回到15.2％的最大PCE。预热的基底紧固托尔的蒸发，使类似成膜动力学CF，从而导致过度的分子聚集和过度的相分离的抑制。三元OSC中，与任一另一供体或受体作为第三成分，可以进一步提高装置PCE至15.8％，证实了通用的光伏系统，该热浇铸法可以应用于。令人鼓舞的是，热压铸加工的二元和三元的OSC也表现出保留贮存稳定性。因此，热浇铸被示为一个优越的策略来制造有机光伏电池，而不使用不含卤素的溶剂效率和稳定性的损失。

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  • 来源
    《Advanced Functional Materials》 |2021年第45期|2105794.1-2105794.8|共8页
  • 作者

    Du Baocai; Ma Yunlong; Guo Chuanhang; Cai Jinlong; Li Donghui; Cheng Shili; Liu Dan; Zheng Qingdong; Wang Tao;

  • 作者单位

    Wuhan Univ Technol Sch Mat Sci & Engn Wuhan 430070 Peoples R China;

    Chinese Acad Sci Fujian Inst Res Struct Matter State Key Lab Struct Chem Fuzhou 350002 Peoples R China;

    Wuhan Univ Technol Sch Mat Sci & Engn Wuhan 430070 Peoples R China;

    Wuhan Univ Technol Sch Mat Sci & Engn Wuhan 430070 Peoples R China;

    Wuhan Univ Technol Sch Mat Sci & Engn Wuhan 430070 Peoples R China;

    Wuhan Univ Technol Sch Mat Sci & Engn Wuhan 430070 Peoples R China;

    Wuhan Univ Technol Sch Mat Sci & Engn Wuhan 430070 Peoples R China;

    Chinese Acad Sci Fujian Inst Res Struct Matter State Key Lab Struct Chem Fuzhou 350002 Peoples R China;

    Wuhan Univ Technol Sch Mat Sci & Engn Wuhan 430070 Peoples R China;

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

    halogen-free solvent; high efficient; hot-casting; organic solar cells;

    机译：无卤素溶剂;高效;热铸造;有机太阳能电池;

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