Tailoring Epitaxial VO2 Thin Films with Tunable Properties via Spray Pyrolysis
Ainabayev A. Walls B. Casey D. Caffrey D. Mullarkey D. McGlinchey A. Khare A. Tikhonov A. Ilhan C. Brennan D. McCormack S.J. Shvets I.
21 December 2023American Chemical Society
Journal of Physical Chemistry C
2023#127Issue 5024432 - 24442 pp.
Significant advancements have been made in the past few decades in the precise control of VO2 synthesis, enabling the creation of structures with diverse morphologies and distinct phase transition properties. Existing synthesis methods used in research settings are often inadequate for large-scale production, particularly concerning high-quality VO2 thin films. Addressing these synthesis obstacles is crucial to unlocking the full potential of VO2 and harnessing its multifunctional properties for a broad range of practical applications. In this study, we highlight the low-cost, nonvacuum, and high-yield spray pyrolysis technique as a promising method for fabricating high-quality VO2 thin films. We successfully synthesized high-quality epitaxial VO2 thin films on a c-plane Al2O3 substrate using spray pyrolysis. Two approaches were employed: direct growth in a nitrogen-oxygen environment and growth of V2O3 in a nitrogen atmosphere, followed by postannealing in a nitrogen-oxygen mix. Both methods yielded relatively high-quality VO2 films with metal-insulator transition properties comparable to those achieved by more sophisticated growth techniques. However, we observed some differences in the electrical and structural properties between the two fabrication approaches. These findings highlight the potential of spray pyrolysis as a cost-effective and scalable technique for the production of high-quality functional VO2 thin films, providing an alternative to conventional growth methods. Optimization of growth parameters and processes is essential for achieving the desired electrical and structural properties in spray pyrolysis-synthesized VO2 films.
Text of the article Перейти на текст статьи
School of Physics, Trinity College Dublin, College Green, Dublin 2, Dublin, D02 PN40, Ireland
Centre for Research on Adaptive Nanostructures and Nanodevices, Trinity College Dublin, 43 Pearse St, Dublin 2, Dublin, D02 W085, Ireland
Physics Department, School of Sciences and Humanities, Nazarbayev University, Qabanbay Batyr Ave 53, Astana, 010000, Kazakhstan
School of Chemistry, Trinity College Dublin, College Green, Dublin 2, Dublin, D02 PN40, Ireland
Department of Civil, Structural and Environmental Engineering, School of Engineering, Trinity College Dublin, Dublin, D02 PN40, Ireland
School of Physics
Centre for Research on Adaptive Nanostructures and Nanodevices
Physics Department
School of Chemistry
Department of Civil
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026