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首页> 外文期刊>Advanced energy materials >Overcoming Microstructural Limitations in Water Processed Organic Solar Cells by Engineering Customized Nanoparticulate Inks
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Overcoming Microstructural Limitations in Water Processed Organic Solar Cells by Engineering Customized Nanoparticulate Inks

机译：通过工程定制的纳米颗粒油墨克服水处理有机太阳能电池的微观结构限制

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摘要

The application of conjugated polymer and fullerene water-based nanoparticles (NP) as ecofriendly inks for organic photovoltaics (OPVs) is reported. A low bandgap polymer diketopyrrolopyrrole-quinquethiophene (PDPP5T-2) and the methanofullerene PC71BM are processed into three types of nanoparticles: pristine fullerene NPs, pristine polymer NPs, and mixed polymer:fullerene NPs, allowing the formation of bulk heterojunction (BHJ) composites with different domain sizes. Mild thermal annealing is required to melt the nanospheres and enable the formation of interconnected pathways within mixed phases. This BHJ is accompanied by a shrinkage of film, whereas the more compact layers show enhanced mobility. Consistently reduced recombination and better performance are found for mixed NP, containing both, the polymer and the fullerene within a single NP. The optimized solar cell processed by ultrasmall NPs delivers a power conversion efficiency of about 3.4%. This is among the highest values reported for aqueous processed OPVs but still lacks performance compared to those being processed from halogenated solvents. Incomplete crystallization is identified as the main root for reduced efficiency. It is nevertheless believed that postprocessing does not cut attraction from printing aqueous organic NP inks as a trendsetting strategy for the reliable and ecofriendly production of organic solar cells.
机译：报道了共轭聚合物和富勒烯水基纳米颗粒（NP）作为有机光伏（OPV）的环保油墨的应用。将低带隙聚合物二酮吡咯并吡咯-喹啉噻吩（PDPP5T-2）和亚甲基富勒烯PC71BM加工成三种类型的纳米颗粒：原始富勒烯NP，原始聚合物NP和混合聚合物：富勒烯NP，允许形成具有以下结构的本体异质结（BHJ）复合材料不同的域大小。需要温和的热退火以熔化纳米球并能够在混合相中形成相互连接的路径。这种BHJ伴随着薄膜的收缩，而更紧密的层则显示出增强的流动性。对于混合的NP（在单个NP中同时包含聚合物和富勒烯），发现一致降低的重组和更好的性能。由超小型NP处理的优化太阳能电池可提供约3.4％的功率转换效率。这是报道的水性加工OPV的最高值之​​一，但与用卤化溶剂加工的OPV相比仍然缺乏性能。不完全结晶被认为是降低效率的主要根源。然而，人们认为，后处理不会减少印刷水性有机NP油墨的吸引力，这是可靠且环保的有机太阳能电池生产的趋势设定策略。

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  • 来源
    《Advanced energy materials》 |2018年第13期|1702857.1-1702857.10|共10页
  • 作者

    Xie Chen; Classen Andrej; Spaeth Andreas; Tang Xiaofeng; Min Jie; Meyer Markus; Zhang Chaohong; Li Ning; Osvet Andres; Fink Rainer H.; Brabec Christoph J.;

  • 作者单位

    Friedrich Alexander Univ Erlangen Nurnberg, Inst Mat Elect & Energy Technol I MEET, Martensstr 7, D-91058 Erlangen, Germany;

    Friedrich Alexander Univ Erlangen Nurnberg, Inst Mat Elect & Energy Technol I MEET, Martensstr 7, D-91058 Erlangen, Germany;

    Friedrich Alexander Univ Erlangen Nurnberg, Phys Chem 2, D-91058 Erlangen, Germany;

    Friedrich Alexander Univ Erlangen Nurnberg, Inst Mat Elect & Energy Technol I MEET, Martensstr 7, D-91058 Erlangen, Germany;

    Friedrich Alexander Univ Erlangen Nurnberg, Inst Mat Elect & Energy Technol I MEET, Martensstr 7, D-91058 Erlangen, Germany;

    Friedrich Alexander Univ Erlangen Nurnberg, Phys Chem 2, D-91058 Erlangen, Germany;

    Friedrich Alexander Univ Erlangen Nurnberg, Inst Mat Elect & Energy Technol I MEET, Martensstr 7, D-91058 Erlangen, Germany;

    Friedrich Alexander Univ Erlangen Nurnberg, Inst Mat Elect & Energy Technol I MEET, Martensstr 7, D-91058 Erlangen, Germany;

    Friedrich Alexander Univ Erlangen Nurnberg, Inst Mat Elect & Energy Technol I MEET, Martensstr 7, D-91058 Erlangen, Germany;

    Friedrich Alexander Univ Erlangen Nurnberg, Phys Chem 2, D-91058 Erlangen, Germany;

    Friedrich Alexander Univ Erlangen Nurnberg, Inst Mat Elect & Energy Technol I MEET, Martensstr 7, D-91058 Erlangen, Germany;

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  • 关键词

    microstructure-recombination correlation; organic photovoltaics; polymer-fullerene nanoparticles; water processed;

    机译：微观结构-复合关系;有机光伏;聚合物-富勒烯纳米粒子;水处理;

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