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An Integrated “Energy Wire” for both Photoelectric Conversion and Energy Storage

Authors

  • Tao Chen,

    1. State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai 200438 (China)
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  • Longbin Qiu,

    1. State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai 200438 (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 200438 (China)
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  • Zhenbo Cai,

    1. State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai 200438 (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 200438 (China)
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  • Houpu Li,

    1. State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai 200438 (China)
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  • Huijuan Lin,

    1. State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai 200438 (China)
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  • Xuemei Sun,

    1. State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai 200438 (China)
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  • Prof. 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 200438 (China)
    • State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai 200438 (China)
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  • This work was supported by NSFC (20904006, 91027025), MOST (2011CB932503, 2011DFA51330), MOE (NCET-09-0318), STCSM (11520701400) and The Program for Prof. of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning.

Abstract

original image

Light my wire: Aligned carbon nanotube (CNT) fibers are wrapped around a TiO2 nanowire that is several centimeters long. Treating the ends of the nanotube wire with a light-sensitive dye and an electrolyte, creates photoelectric-conversion and energy-storage regions in the same device (see scheme). The “wire” shows a high overall photoelectric conversion and storage efficiency of 1.5 %.

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