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Simultaneously Grasping and Self-Organizing Photoactive Polymers for Highly Reproducible Organic Solar Cells with Improved Efficiency

Authors

  • Hyojung Cha,

    1. Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 790-784, Republic of Korea
    Current affiliation:
    1. These authors contributed equally to this work
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  • Gang Young Lee,

    1. Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 790-784, Republic of Korea
    Current affiliation:
    1. These authors contributed equally to this work
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  • Yuanhe Fu,

    1. Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 790-784, Republic of Korea
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  • Yu Jin Kim,

    1. School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 790-784, Republic of Korea
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  • Chan Eon Park,

    Corresponding author
    1. Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 790-784, Republic of Korea
    2. School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 790-784, Republic of Korea
    • Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 790-784, Republic of Korea.
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  • Taiho Park

    Corresponding author
    1. Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 790-784, Republic of Korea
    • Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, 790-784, Republic of Korea.
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Abstract

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The incorporation of 3,6-carbazole units into photoactive copolymers results in conjugation breaks along the polymer backbones and thus in strong intermolecular interactions. Such copolymers provide thermally reproducible morphologies and enhanced device performances over a wide range of annealing temperatures, 100 to 160 °C, with high power conversion efficiencies of over 6%.

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