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Unzipping of black phosphorus to form zigzag-phosphorene nanobelts

Author

Listed:
  • Zhifang Liu

    (Tsinghua University)

  • Yilin Sun

    (Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University)

  • Huaqiang Cao

    (Tsinghua University)

  • Dan Xie

    (Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University)

  • Wei Li

    (National Institute for Advanced Materials, Nankai University)

  • Jiaou Wang

    (Institute of High Energy Physics, Chinese Academy of Sciences)

  • Anthony K. Cheetham

    (University of Cambridge)

Abstract

Phosphorene, monolayer or few-layer black phosphorus, exhibits fascinating anisotropic properties and shows interesting semiconducting behavior. The synthesis of phosphorene nanosheets is still a hot topic, including the shaping of its two-dimensional structure into nanoribbons or nanobelts. Here we report electrochemical unzipping of single crystalline black phosphorus into zigzag-phosphorene nanobelts, as well as nanosheets and quantum dots, via an oxygen-driven mechanism. The experimental results agree well with our theoretical calculations. The calculation for the unzipping mechanism study suggests that interstitial oxygen-pairs are the critical intermediate species for generating zigzag-phosphorene nanobelts. Although phosphorene oxidation has been reported, lengthwise cutting is hitherto unreported. Our discovery of phosphorene cut upon oxidation represents a previously unknown mechanism for the formation of various dimensions of phosphorene nanostructures, especially zigzag-phosphorene nanobelts. It opens up a way for studying the quantum effects and electronic properties of zigzag-phosphorene nanobelts.

Suggested Citation

  • Zhifang Liu & Yilin Sun & Huaqiang Cao & Dan Xie & Wei Li & Jiaou Wang & Anthony K. Cheetham, 2020. "Unzipping of black phosphorus to form zigzag-phosphorene nanobelts," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17622-6
    DOI: 10.1038/s41467-020-17622-6
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