Formation of vanadium dioxide nanocrystal arrays via post-growth annealing for stable and energy-efficient switches Full article
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Physica E: Low-dimensional Systems and Nanostructures
ISSN: 1386-9477 |
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| Output data | Year: 2025, Volume: 167, Article number : 116165, Pages count : 11 DOI: 10.1016/j.physe.2024.116165 | ||||||
| Tags | Vanadium dioxideNanocrystalsPost-growth annealingAtomic-layer depositionSemiconductor-to-metal phase transitionResistive switching | ||||||
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Abstract:
The abrupt and reversible semiconductor-metal phase transition in vanadium dioxide nanocrystals has attracted
considerable attention for potential applications in oxide electronics, including neuromorphic systems. This
study presents a systematic investigation of post-growth annealing conditions for the formation of single VO 2 M-
phase nanocrystals arrays from VO x films synthesized by atomic layer deposition. The composition of the initial
VO x films and the annealing parameters were found to significantly affect the morphology, phase composition
and electrical properties of the obtained single nanocrystal arrays. Our results demonstrate that the formation of
VO 2 M-phase nanocrystal arrays occurs at annealing temperatures of 650 ◦ C and above, irrespective of the initial
film composition. More homogeneous in size nanocrystals are formed from initial VO x films with higher V +4
content. The structures with the initial V +4 content of 60 % annealed at 650 ◦ C for 2 h demonstrates the resistive
switching with an energy less than 150 fJ, and a total number of stable switching cycles more than 10 1 ⁰. Our
results pave the way for the novel energy-efficient nanoelectronic and nanophotonic devices based on VO₂
nanoparticles.
Cite:
Kapoguzov K.E.
, Mutilin S.V.
, Lysenko N.I.
, Kichay V.N.
, Yakovkina L.V.
, Voloshin B.V.
, Seleznev V.A.
Formation of vanadium dioxide nanocrystal arrays via post-growth annealing for stable and energy-efficient switches
Physica E: Low-dimensional Systems and Nanostructures. 2025. V.167. 116165 :1-11. DOI: 10.1016/j.physe.2024.116165 WOS OpenAlex
Formation of vanadium dioxide nanocrystal arrays via post-growth annealing for stable and energy-efficient switches
Physica E: Low-dimensional Systems and Nanostructures. 2025. V.167. 116165 :1-11. DOI: 10.1016/j.physe.2024.116165 WOS OpenAlex
Dates:
| Submitted: | Sep 23, 2024 |
| Accepted: | Nov 22, 2024 |
| Published online: | Nov 26, 2024 |
| Published print: | Feb 1, 2025 |
Identifiers:
| Web of science: | WOS:001370737000001 |
| OpenAlex: | W4404726704 |
Citing:
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