Advanced Materials

A Facile One-step Method to Produce Graphene–CdS Quantum Dot Nanocomposites as Promising Optoelectronic Materials

Authors

  • Aoneng Cao,

    Corresponding author
    1. Institute of Nanochemistry and Nanobiology Shanghai University, Shanghai, 200444 (P. R. China)
    • Institute of Nanochemistry and Nanobiology Shanghai University, Shanghai, 200444 (P. R. China).
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  • Zhen Liu,

    1. Institute of Nanochemistry and Nanobiology Shanghai University, Shanghai, 200444 (P. R. China)
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  • Saisai Chu,

    1. State Key Laboratory for Mesoscopic Physics, School of Physics Peking University, Beijing, 100871 (P. R. China)
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  • Minghong Wu,

    1. Institute of Nanochemistry and Nanobiology Shanghai University, Shanghai, 200444 (P. R. China)
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  • Zhangmei Ye,

    1. Institute of Nanochemistry and Nanobiology Shanghai University, Shanghai, 200444 (P. R. China)
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  • Zhengwei Cai,

    1. Institute of Nanochemistry and Nanobiology Shanghai University, Shanghai, 200444 (P. R. China)
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  • Yanli Chang,

    1. Institute of Nanochemistry and Nanobiology Shanghai University, Shanghai, 200444 (P. R. China)
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  • Shufeng Wang,

    Corresponding author
    1. State Key Laboratory for Mesoscopic Physics, School of Physics Peking University, Beijing, 100871 (P. R. China)
    • State Key Laboratory for Mesoscopic Physics, School of Physics Peking University, Beijing, 100871 (P. R. China).
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  • Qihuang Gong,

    1. State Key Laboratory for Mesoscopic Physics, School of Physics Peking University, Beijing, 100871 (P. R. China)
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  • Yuanfang Liu

    Corresponding author
    1. Institute of Nanochemistry and Nanobiology Shanghai University, Shanghai, 200444 (P. R. China)
    2. Beijing National Laboratory of Molecular Science College of Chemistry and Molecular Engineering Peking University, Beijing, 100871 (P. R. China)
    • Beijing National Laboratory of Molecular Science College of Chemistry and Molecular Engineering Peking University, Beijing, 100871 (P. R. China).
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Abstract

A single-layer graphene–CdS quantum dot nanocomposite is synthesized by a one-step reaction from graphene oxide, and thus avoids the low-yield production and the aggregation of single-layer graphene sheets. This new graphene-based material shows promising optoelectronic properties. Picosecond ultrafast electron transfer from the CdS quantum dots to the graphene sheets has been observed by time-resolved fluorescence spectroscopy.

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