Projects per year
Abstract
The hydrothermal method is the most effective approach for the synthesis of VO 2 metastable polymorphs with unique powder crystallite morphology. In this work, we expanded the capabilities of this method, directing it to the growth of oriented crystallites in self-organized systems on single crystal substrates. According to our investigations, a large variety of 3D structures of vanadium dioxide can be obtained using one single crystal substrate r-sapphire by fine tuning of synthesis parameters. The orientation growth of six-pointed vanadium dioxide crystallites fits into an epitaxial growth model describing unit cell relations between the VO 2(M 1) film and r-sapphire substrate. We describe the process of VO 2(M 1) phase stabilization in the films and the changes of resistivity and terahertz transparency of the films based on the metal-insulator transition (MIT).
Original language | English |
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Pages (from-to) | 2612-2620 |
Number of pages | 9 |
Journal | CrystEngComm |
Volume | 22 |
Issue number | 15 |
Early online date | 26 Feb 2020 |
DOIs | |
Publication status | Published - 21 Apr 2020 |
Keywords
- Terahertz
- Vanadium dioxide
- Epitaxy growth
ASJC Scopus subject areas
- Condensed Matter Physics
- Chemistry(all)
- Materials Science(all)
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Dive into the research topics of 'Hydrothermal epitaxy growth of self-organized vanadium dioxide 3D structures with metal-insulator transition and THz transmission switch properties'. Together they form a unique fingerprint.Projects
- 2 Finished
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THEIA: fast super-resolution TeraHErtz mIcroscopy for nAtural Sciences
Engineering & Physical Science Research Council
1/08/19 → 31/03/21
Project: Research
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Super-resolution Structured Terahertz Illumination Microscopy
31/03/18 → 30/03/19
Project: Research Councils