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Stacking-Order-Dependent Optoelectronic Properties of Bilayer Nanofilm Photodetectors Made From Hollow ZnS and ZnO Microspheres

Authors

  • Linfeng Hu,

    1. Department of Materials Science and State Key, Laboratory of Molecular Engineering of Polymers, the Advanced Coatings Research Center of China, Educational Ministry and Advanced Materials Laboratory, Fudan University, Shanghai 200433, P. R. China
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  • Min Chen,

    1. Department of Materials Science and State Key, Laboratory of Molecular Engineering of Polymers, the Advanced Coatings Research Center of China, Educational Ministry and Advanced Materials Laboratory, Fudan University, Shanghai 200433, P. R. China
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  • Wenze Shan,

    1. Department of Materials Science and State Key, Laboratory of Molecular Engineering of Polymers, the Advanced Coatings Research Center of China, Educational Ministry and Advanced Materials Laboratory, Fudan University, Shanghai 200433, P. R. China
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  • Tianrong Zhan,

    1. Department of Materials Science and State Key, Laboratory of Molecular Engineering of Polymers, the Advanced Coatings Research Center of China, Educational Ministry and Advanced Materials Laboratory, Fudan University, Shanghai 200433, P. R. China
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  • Meiyong Liao,

    1. Optical and Electronic Materials Unit, National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
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  • Xiaosheng Fang,

    1. Department of Materials Science and State Key, Laboratory of Molecular Engineering of Polymers, the Advanced Coatings Research Center of China, Educational Ministry and Advanced Materials Laboratory, Fudan University, Shanghai 200433, P. R. China
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  • Xinhua Hu,

    1. Department of Materials Science and State Key, Laboratory of Molecular Engineering of Polymers, the Advanced Coatings Research Center of China, Educational Ministry and Advanced Materials Laboratory, Fudan University, Shanghai 200433, P. R. China
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  • Limin Wu

    Corresponding author
    1. Department of Materials Science and State Key, Laboratory of Molecular Engineering of Polymers, the Advanced Coatings Research Center of China, Educational Ministry and Advanced Materials Laboratory, Fudan University, Shanghai 200433, P. R. China
    • Department of Materials Science and State Key, Laboratory of Molecular Engineering of Polymers, the Advanced Coatings Research Center of China, Educational Ministry and Advanced Materials Laboratory, Fudan University, Shanghai 200433, P. R. China.
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Abstract

original image

Innovative bilayer nanofilms composed of semiconducting ZnS and ZnO hollow microspheres are successfully fabricated by an oil–water interfacial self-assembly strategy. The photocurrent of the bilayer film-based photodetectors is dependent on the stacking orders of the building blocks. The optimal optoelectronic properties of the ZnS(up)/ZnO(down) device are much better than those of the monolayer-film based device.

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