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Two-dimensional inorganic molecular crystals

Author

Listed:
  • Wei Han

    (Huazhong University of Science and Technology (HUST))

  • Pu Huang

    (Shenzhen University)

  • Liang Li

    (Huazhong University of Science and Technology (HUST))

  • Fakun Wang

    (Huazhong University of Science and Technology (HUST))

  • Peng Luo

    (Huazhong University of Science and Technology (HUST))

  • Kailang Liu

    (Huazhong University of Science and Technology (HUST))

  • Xing Zhou

    (Huazhong University of Science and Technology (HUST))

  • Huiqiao Li

    (Huazhong University of Science and Technology (HUST)
    Stanford University)

  • Xiuwen Zhang

    (Shenzhen University)

  • Yi Cui

    (Stanford University)

  • Tianyou Zhai

    (Huazhong University of Science and Technology (HUST))

Abstract

Two-dimensional molecular crystals, consisting of zero-dimensional molecules, are very appealing due to their novel physical properties. However, they are mostly limited to organic molecules. The synthesis of inorganic version of two-dimensional molecular crystals is still a challenge due to the difficulties in controlling the crystal phase and growth plane. Here, we design a passivator-assisted vapor deposition method for the growth of two-dimensional Sb2O3 inorganic molecular crystals as thin as monolayer. The passivator can prevent the heterophase nucleation and suppress the growth of low-energy planes, and enable the molecule-by-molecule lateral growth along high-energy planes. Using Raman spectroscopy and in situ transmission electron microscopy, we show that the insulating α-phase of Sb2O3 flakes can be transformed into semiconducting β-phase under heat and electron-beam irradiation. Our findings can be extended to the controlled growth of other two-dimensional inorganic molecular crystals and open up opportunities for potential molecular electronic devices.

Suggested Citation

  • Wei Han & Pu Huang & Liang Li & Fakun Wang & Peng Luo & Kailang Liu & Xing Zhou & Huiqiao Li & Xiuwen Zhang & Yi Cui & Tianyou Zhai, 2019. "Two-dimensional inorganic molecular crystals," Nature Communications, Nature, vol. 10(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-12569-9
    DOI: 10.1038/s41467-019-12569-9
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