GROWTH AND STRUCTURE OF SnO/ZnO BIAXIAL NANOWIRES ON ZnO NANOWIRE BY VAPOR-LIQUID-SOLID MECHANISM

Authors

  • Tien Hung Pham Le Quy Don Technical University, Hanoi, Vietnam
  • Quang Dat Tran Le Quy Don Technical University, Hanoi, Vietnam
  • Xuan Thau Nguyen Le Quy Don Technical University, Hanoi, Vietnam
  • Vu Tung Nguyen Le Quy Don Technical University, Hanoi, Vietnam
  • Tien Anh Nguyen Le Quy Don Technical University, Hanoi, Vietnam
  • Van Thin Pham Le Quy Don Technical University, Hanoi, Vietnam

DOI:

https://doi.org/10.56651/lqdtu.jst.v16.n03.273

Keywords:

SnO, ZnO, biaxial nanowires, CVD, VLS

Abstract

In this work, the biaxial SnO/ZnO nanowires in the average length of 5 μm, have been successfully synthesized on a ZnO-nanowire substrate using a chemical vapor deposition (CVD) system through a two-step process. First, ZnO nanowires were grown directly on the glass substrate with a gold catalyst. Then, these nanowires were used as templates for the growth of biaxial SnO/ZnO nanowires without any catalyst. The obtained products were characterized by X-ray diffraction (XRD), field-emission electron scanning microscopy (FE-SEM), and high-resolution transmission electron microscopy (HR-TEM). The Sn-Zn alloy formulated during the process was believed a catalyst for the growth of the biaxial SnO/ZnO nanowires. The biaxial structure was formed due to simultaneous growth of SnO and ZnO nanowire along the direction of SnO [110] and ZnO [002], respectively. A possible growth mechanism of the biaxial SnO/ZnO nanowire was discussed based on the vapor-liquid-solid (VLS) mechanism. The as-synthesized structure could be a good candidate for nano-sensors.

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Published

2021-09-21

How to Cite

Pham, T. H., Tran, Q. D., Nguyen, X. T., Nguyen, V. T., Nguyen, T. A., & Pham, V. T. (2021). GROWTH AND STRUCTURE OF SnO/ZnO BIAXIAL NANOWIRES ON ZnO NANOWIRE BY VAPOR-LIQUID-SOLID MECHANISM. Journal of Science and Technique, 16(03), 5 - 15. https://doi.org/10.56651/lqdtu.jst.v16.n03.273

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