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Interfaces between hexagonal and cubic oxides and their structure alternatives

Author

Listed:
  • Hua Zhou

    (Xiamen University
    Shenzhen University)

  • Lijun Wu

    (Brookhaven National Laboratory)

  • Hui-Qiong Wang

    (Xiamen University
    Xiamen University Malaysia)

  • Jin-Cheng Zheng

    (Xiamen University
    Xiamen University Malaysia)

  • Lihua Zhang

    (Center for Functional Nanomaterials, Brookhaven National Laboratory)

  • Kim Kisslinger

    (Center for Functional Nanomaterials, Brookhaven National Laboratory)

  • Yaping Li

    (Xiamen University)

  • Zhiqiang Wang

    (Xiamen University)

  • Hao Cheng

    (Xiamen University)

  • Shanming Ke

    (Shenzhen University)

  • Yu Li

    (Shenzhen University)

  • Junyong Kang

    (Xiamen University)

  • Yimei Zhu

    (Brookhaven National Laboratory)

Abstract

Multi-layer structure of functional materials often involves the integration of different crystalline phases. The film growth orientation thus frequently exhibits a transformation, owing to multiple possibilities caused by incompatible in-plane structural symmetry. Nevertheless, the detailed mechanism of the transformation has not yet been fully explored. Here we thoroughly probe the heteroepitaxially grown hexagonal zinc oxide (ZnO) films on cubic (001)-magnesium oxide (MgO) substrates using advanced scanning transition electron microscopy, X-ray diffraction and first principles calculations, revealing two distinct interface models of (001) ZnO/(001) MgO and (100) ZnO/(001) MgO. We have found that the structure alternatives are controlled thermodynamically by the nucleation, while kinetically by the enhanced Zn adsorption and O diffusion upon the phase transformation. This work not only provides a guideline for the interface fabrication with distinct crystalline phases but also shows how polar and non-polar hexagonal ZnO films might be manipulated on the same cubic substrate.

Suggested Citation

  • Hua Zhou & Lijun Wu & Hui-Qiong Wang & Jin-Cheng Zheng & Lihua Zhang & Kim Kisslinger & Yaping Li & Zhiqiang Wang & Hao Cheng & Shanming Ke & Yu Li & Junyong Kang & Yimei Zhu, 2017. "Interfaces between hexagonal and cubic oxides and their structure alternatives," Nature Communications, Nature, vol. 8(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-01655-5
    DOI: 10.1038/s41467-017-01655-5
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    Cited by:

    1. Malkeshkumar Patel & Hyeong-Ho Park & Priyanka Bhatnagar & Naveen Kumar & Junsik Lee & Joondong Kim, 2024. "Transparent integrated pyroelectric-photovoltaic structure for photo-thermo hybrid power generation," Nature Communications, Nature, vol. 15(1), pages 1-14, December.
    2. Salazar, R. & Serrano, M. & Abdelkefi, A., 2020. "Fatigue in piezoelectric ceramic vibrational energy harvesting: A review," Applied Energy, Elsevier, vol. 270(C).

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