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Novel Graphene/Carbon Nanotube Composite Fibers for Efficient Wire-Shaped Miniature Energy Devices

Authors

  • Hao Sun,

    1. State Key Laboratory of Molecular, Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, China
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  • Xiao You,

    1. State Key Laboratory of Molecular, Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, China
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  • Jue Deng,

    1. State Key Laboratory of Molecular, Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, China
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  • Xuli Chen,

    1. State Key Laboratory of Molecular, Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, China
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  • Zhibin Yang,

    1. State Key Laboratory of Molecular, Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, China
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  • Jing Ren,

    1. State Key Laboratory of Molecular, Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, China
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  • Huisheng Peng

    Corresponding author
    1. State Key Laboratory of Molecular, Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, China
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Abstract

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Novel nanostructured composite fibers based on graphene and carbon nanotubes are developed with high tensile strength, electrical conductivity, and electrocatalytic activity. As two application demonstrations, these composite fibers are used to fabricate flexible, wire-shaped dye-sensitized solar cells and electrochemical supercapacitors, both with high performances, for example, a maximal energy conversion efficiency of 8.50% and a specific capacitance of ca. 31.50 F g−1. These miniature wire-shaped devices are further shown to be promising for flexible and portable electronic facilities.

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