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首页> 外文期刊>Advanced energy materials >Patterned Blade Coating Strategy Enables the Enhanced Device Reproducibility and Optimized Morphology of Organic Solar Cells
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Patterned Blade Coating Strategy Enables the Enhanced Device Reproducibility and Optimized Morphology of Organic Solar Cells

机译：图案化的刀片涂层策略使得能量增强的器件再现性和有机太阳能电池的优化形态

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摘要

Morphology evolution kinetics at multi-scale regime is a challenging problem which is critical for industrial fabrication of high-performance organic solar cells (OSCs). An innovative strategy utilizing a patterned blade to print non-fullerene (NF) based devices in ambient conditions is demonstrated. A specially designed patterned blade with micro-cylinder arrays exhibit a reasonable control over the fluid flow at high extensional and shear strain rate to enhance lateral mass transport during blade-coating. Comparison of patterned and normal blade in printing polymer:NF blend film at different speeds reveals interesting avenues to optimize the blend films morphology. Patterned blade printed PM6:Y6 films yield a PCE of 15.93% as compared to 14.55% from a normal blade. Through in situ and ex situ morphology characterization techniques, the use of patterned blades induce conformational changes in PM6 chains, enabling Y6 to crystallize faster and more efficiently. Such improved blend morphology enables favorable charge transfer and transport to realize superior device performance. A lower stick-slip effect at the macro-scale with the patterned blade results in a smoother film promoting device reproducibility. Applications in efficient large-scale devices, confirming the choice of patterned blade design are reported. The efforts collaborating device engineering, morphology evolution kinetics would enable reproducibility and eased commercialization of OSCs at large scale.
机译：多尺度制度的形态演化动力学是一个具有挑战性的问题，对于高性能有机太阳能电池（OSC）的工业制造至关重要。证实了利用图案化刀片在环境条件下打印非富勒烯（NF）的设备的创新策略。具有微缸阵列的特殊设计的图案刀片在高延长和剪切应变速率下具有合理的控制，以增强叶片涂层期间的横向质量传输。在印刷聚合物中的图案化和正常叶片的比较：不同速度的NF共混膜揭示了优化共混膜形态的有趣途径。图案叶片印刷PM6：Y6薄膜产生15.93％的PCE，与普通叶片的14.55％相比。通过原位和出原位形态表征技术，使用图案化叶片诱导PM6链的构象变化，使Y6能够更快地结晶和更有效。这种改进的混合物形态使得能够实现良好的电荷转移和运输，以实现卓越的装置性能。在宏观尺度下较低的粘滑效果，图案叶片导致薄膜促进装置再现性。报告了高效大规模设备中的应用，确认了图案化刀片设计的选择。协作设备工程的努力，形态进化动力学将使重现性和大规模化的商业化。

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  • 来源
    《Advanced energy materials》 |2021年第18期|2100098.1-2100098.10|共10页
  • 作者

    Yuan Jian; Liu Dongjie; Zhao Heng; Lin Baojun; Zhou Xiaobo; Naveed Hafiz Bilal; Zhao Chao; Zhou Ke; Tang Zheng; Chen Fei; Ma Wei;

  • 作者单位

    Xi An Jiao Tong Univ State Key Lab Mech Behav Mat Xian 710049 Peoples R China;

    Xi An Jiao Tong Univ Sch Chem Engn & Technol Xian 710049 Peoples R China;

    Xi An Jiao Tong Univ State Key Lab Mech Behav Mat Xian 710049 Peoples R China;

    Xi An Jiao Tong Univ State Key Lab Mech Behav Mat Xian 710049 Peoples R China;

    Xi An Jiao Tong Univ State Key Lab Mech Behav Mat Xian 710049 Peoples R China;

    Xi An Jiao Tong Univ State Key Lab Mech Behav Mat Xian 710049 Peoples R China;

    Xi An Jiao Tong Univ State Key Lab Mech Behav Mat Xian 710049 Peoples R China;

    Xi An Jiao Tong Univ State Key Lab Mech Behav Mat Xian 710049 Peoples R China;

    Donghua Univ State Key Lab Modificat Chem Fibers & Polymer Mat Ctr Adv Low Dimens Mat Coll Mat Sci & Engn Shanghai 201620 Peoples R China;

    Xi An Jiao Tong Univ Sch Chem Engn & Technol Xian 710049 Peoples R China;

    Xi An Jiao Tong Univ State Key Lab Mech Behav Mat Xian 710049 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    device reproducibility; extensional strain rate; optimized morphology; organic solar cells; patterned blade coating; shear stain rate;

    机译：器件再现性;扩展应变率;优化形态;有机太阳能电池;图案叶片涂层;剪切污渍率;

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