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Spin-Coated Small Molecules for High Performance Solar Cells

Authors

  • Yongsheng Liu,

    1. Key Laboratory for Functional Polymer Materials and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China
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  • Xiangjian Wan,

    Corresponding author
    1. Key Laboratory for Functional Polymer Materials and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China
    • Key Laboratory for Functional Polymer Materials and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China.
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  • Fei Wang,

    1. Key Laboratory for Functional Polymer Materials and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China
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  • Jiaoyan Zhou,

    1. Key Laboratory for Functional Polymer Materials and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China
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  • Guankui Long,

    1. Key Laboratory for Functional Polymer Materials and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China
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  • Jianguo Tian,

    1. College of Physics, Nankai University, Tianjin 300071, PR China
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  • Jingbi You,

    1. Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USA
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  • Yang Yang,

    1. Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USA
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  • Yongsheng Chen

    Corresponding author
    1. Key Laboratory for Functional Polymer Materials and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China
    • Key Laboratory for Functional Polymer Materials and Centre for Nanoscale Science and Technology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China.
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Abstract

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Conjugated small molecules can show excellent performance in bulk heterojunction solar cells. Using a simple solution spinning process, high power conversion efficiencies have been achieved by employing these molecules. As an example, DCAO7T/PC61BM based solar cells exhibit power conversion efficiency values of up to 5.08%, with a short- circuit current density of 10.74 mA/cm2, an open-circuit voltage of 0.86 V, and a fill factor of 55.0%.

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