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Preparation of In2S3 and Cu-Doped In2S3 2D Ultrathin Nanoflakes with Tunable Absorption and Intense Photocurrent Response

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Wuhan University Journal of Natural Sciences

Abstract

We reported an effective method to synthesize In2S3 and Cu-doped In2S3 two-dimensional ultrathin nanoflakes by the hydrothermal method through tuning the Cu/In molar ratio. The transmission electron microscope images showed that the products had ultrathin flake-like shape with wrinkling and rolling. The X-ray diffraction patterns indicated the crystal phase of nanoflakes was varied from β-In2S3 to tetragonal-CuInS2 as the Cu/In molar ratio was increased. The In2S3 nanoflakes exhibited absorption band at 450 nm, while new absorption peaks in turn appeared at 550 nm and 670 nm as the Cu/In molar ratio was increased. In addition, the two-dimensional ultrathin nanoflakes exhibited intense photocurrent response.

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Authors and Affiliations

  1. School of Physics and Technology, Wuhan University, Wuhan, 430072, Hubei, China

    Pengfei Wang, Kai Chen, Guiming Pan, Ying Xie & Li Zhou

Authors
  1. Pengfei Wang
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  2. Kai Chen
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  3. Guiming Pan
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  4. Ying Xie
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  5. Li Zhou
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Correspondence to Li Zhou.

Additional information

Foundation item: Supported by the National Key Research & Development Program of China (2017YFA0303402), and the Large-Scale Instrument and Equipment Sharing Foundation of Wuhan University

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Wang, P., Chen, K., Pan, G. et al. Preparation of In2S3 and Cu-Doped In2S3 2D Ultrathin Nanoflakes with Tunable Absorption and Intense Photocurrent Response. Wuhan Univ. J. Nat. Sci. 23, 424–428 (2018). https://doi.org/10.1007/s11859-018-1343-9

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  • DOI: https://doi.org/10.1007/s11859-018-1343-9

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