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首页> 外文期刊>Advanced Functional Materials >Bifunctional Bis-benzophenone as A Solid Additive for Non-Fullerene Solar Cells
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Bifunctional Bis-benzophenone as A Solid Additive for Non-Fullerene Solar Cells

机译：双官能双二苯甲酮作为非富勒烯太阳能电池的固体添加剂

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摘要

Simultaneously improving efficiency and stability is critical for the commercial application of non-fullerene acceptor polymer solar cells (NFA-PSCs). Multifunctional solid additives have been considered as a potential route to tune the morphology of the active layer and optimize performance. In this work, photoinitiator bifunctional bis-benzophenone (BP-BP) is used as a solid additive, replacing solvent additives, in the PBDB-T:ITIC NFA system. With the addition of BP-BP, the intermolecular pi-pi stacking of PBDB-T and morphology is improved, leading to more balanced carrier transport and more effective exciton dissociation. Devices fabricated with BP-BP show a power conversion efficiency (PCE) of 11.89%, with enhanced short-circuit current (J(sc)), and fill factor (FF). Devices optimized with BP-BP show excellent reproducibility, insensitivity to thickness, and an improved thermal stability under atmospheric conditions without encapsulation. This work provides a new strategy for the application of solid additives in NFA-PSCs.
机译：同时提高效率和稳定性对于非富含族受体聚合物太阳能电池（NFA-PSC）的商业应用至关重要。多官能固体添加剂被认为是调整有源层的形态并优化性能的潜在路线。在这项工作中，光引发剂双官能双 - 二苯甲酮（BP-BP）用作PBDB-T中的固体添加剂，替代溶剂添加剂，在PBDB-T：ITIC NFA系统中。随着BP-BP的添加，改善了PBDB-T和形态的分子间Pi-Pi堆叠，导致更平衡的载体传输和更有效的激子解离。采用BP-BP制造的器件显示出11.89％的电源转换效率（PCE），短路电流增强（J（SC））和填充因子（FF）。用BP-BP优化的设备显示出优异的再现性，对厚度的不敏感性，并且在没有封装的情况下在大气条件下提高的热稳定性。这项工作为在NFA-PSC中施用固体添加剂提供了一种新的策略。

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  • 来源
    《Advanced Functional Materials》 |2021年第8期|2008699.1-2008699.7|共7页
  • 作者

    Fan Pu; Sun Wenjian; Zhang Xiaohua; Wu Yao; Hu Qin; Zhang Qing; Yu Junsheng; Russell Thomas P.;

  • 作者单位

    Univ Elect Sci & Technol China UESTC Sch Optoelect Sci & Engn State Key Lab Elect Thin Films & Integrated Devic Chengdu 610054 Peoples R China|Univ Massachusetts Polymer Sci & Engn Dept 120 Governors Dr Amherst MA 01003 USA;

    Shanghai Jiao Tong Univ Sch Chem & Chem Engn Dept Polymer Sci & Engn Shanghai Key Lab Elect Insulat & Thermal Aging Shanghai 200240 Peoples R China;

    Univ Elect Sci & Technol China UESTC Sch Optoelect Sci & Engn State Key Lab Elect Thin Films & Integrated Devic Chengdu 610054 Peoples R China;

    Univ Massachusetts Polymer Sci & Engn Dept 120 Governors Dr Amherst MA 01003 USA;

    Univ Massachusetts Polymer Sci & Engn Dept 120 Governors Dr Amherst MA 01003 USA|Univ Sci & Technol China Sch Microelect Hefei 230026 Anhui Peoples R China|Lawrence Berkeley Natl Lab Mat Sci Div Berkeley CA 94720 USA;

    Shanghai Jiao Tong Univ Sch Chem & Chem Engn Dept Polymer Sci & Engn Shanghai Key Lab Elect Insulat & Thermal Aging Shanghai 200240 Peoples R China;

    Univ Elect Sci & Technol China UESTC Sch Optoelect Sci & Engn State Key Lab Elect Thin Films & Integrated Devic Chengdu 610054 Peoples R China;

    Univ Massachusetts Polymer Sci & Engn Dept 120 Governors Dr Amherst MA 01003 USA|Lawrence Berkeley Natl Lab Mat Sci Div Berkeley CA 94720 USA;

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  • 正文语种 eng
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  • 关键词

    non#8208; fullerene solar cell; solid additive; thermal stability; thickness insensitivity;

    机译：非＆＃8208;富勒烯太阳能电池;固体添加剂;热稳定性;厚度不敏感;

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