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Film Morphology of High Efficiency Solution-Processed Small-Molecule Solar Cells

机译:高效溶液处理的小分子太阳能电池的薄膜形态

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摘要

Morphological control over the bulk heterojunction (BHJ) microstructure of a high-efficiency small molecule photovoltaic system is demonstrated using both thermal treatment and solvent additive processing. Single crystal X-ray diffraction is utilized to understand molecular interactions in the solid state and the BHJ morphology is examined using bright field, high-resolution, and cross-section transmission electron microscopy techniques. Controlling the domain size, while maintaining good molecular order within the semiconducting donor material, is found to be crucial in achieving high performance and over 90% internal quantum efficiency exhibited under the optimized conditions.
机译:使用热处理和溶剂添加剂处理对高效小分子光伏系统的本体异质结(BHJ)微观结构进行形态控制。利用单晶X射线衍射了解固态中的分子相互作用,并使用明场,高分辨率和截面透射电子显微镜技术检查BHJ形态。发现在半导体供体材料内保持良好的分子有序的同时控制域的大小对于实现高性能至关重要,并且在优化的条件下展现出超过90%的内部量子效率。

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  • 来源
    《Advanced Functional Materials》 |2013年第40期|5019-5026|共8页
  • 作者单位

    Center for Polymers and Organic Solids University of California Santa Barbara, CA 93106, USA;

    Center for Polymers and Organic Solids University of California Santa Barbara, CA 93106, USA;

    Center for Polymers and Organic Solids University of California Santa Barbara, CA 93106, USA;

    Center for Polymers and Organic Solids University of California Santa Barbara, CA 93106, USA;

    Center for Polymers and Organic Solids University of California Santa Barbara, CA 93106, USA;

    Center for Polymers and Organic Solids University of California Santa Barbara, CA 93106, USA;

    Center for Polymers and Organic Solids University of California Santa Barbara, CA 93106, USA;

    Center for Polymers and Organic Solids University of California Santa Barbara, CA 93106, USA;

    Center for Polymers and Organic Solids University of California Santa Barbara, CA 93106, USA;

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