A new approach to the fabrication of VO<sub>2</sub> nanoswitches with ultra-low energy consumption

Prinz, V. Ya.; Mutilin, Sergey V.; Yakovkina, L. V.; Гутаковский, А. К.; Komonov, A. I.

doi:10.1039/c9nr08712e

Cited by 23 publications

(7 citation statements)

References 59 publications

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“…Figure a shows electrical resistivity curves as functions of temperature for undoped and doped VO 2 thin-film samples S1–S4 during the heating/cooling cycle. All dependences demonstrate an identical trend corresponding to the common behavior of the VO 2 (M 1 ) crystal: a slow decrease in the resistivity of the insulating phase below the transition temperature and an abrupt decrease at metal–insulator transition. − To describe the change of the MIT transition temperature ( T MIT ) and the sharpness of the resistivity change, T heat and T cool are defined as the corresponding peak positions of the derivative curves d(log( R ))/d T during heating and cooling, respectively. T MIT was defined as T MIT = ( T heat + T cool )/2.…”

Section: Resultsmentioning

confidence: 98%

Fabrication of Epitaxial W-Doped VO₂ Nanostructured Films for Terahertz Modulation Using the Solvothermal Process

Ivanov

Tatarenko

Gorodetsky

et al. 2021

ACS Appl. Nano Mater.

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We report a feasible and high-throughput method for high-quality W-doped VO 2 nanostructured epitaxial films on rsapphire substrate fabrication. Single-phase, smooth vanadium dioxide thin films with uniform distribution of tungsten (up to 2.3%) are formed using the solvothermal process from ethylene glycol/water V 4+ and W 6+ solutions. Compositional analysis by X-ray photoelectron and energy-dispersive X-ray spectroscopy (XPS and EDX, respectively); structural analysis (X-ray diffraction, Raman spectroscopy, selected area electron diffraction (SAED)); and detailed analysis of the surface morphology and substrate−film interface using scanning electron microscopy, atomic force microscopy, and high-resolution transmission electron microscopy (SEM, AFM, HRTEM, respectively) confirm the formation of nanoscale (50−60 nm) epitaxial W:VO 2 (M 1 ) on r-sapphire with epitaxial relationships (100)VO 2 ∥(101̅ 2)Al 2 O 3 and [010]VO 2 ∥[011̅ 0]Al 2 O 3 . The nanostructured films demonstrate excellent terahertz (THz) transmission properties: a phase transition temperature of 31 °C, a huge THz modulation depth of over 60%, and broad bandwidth (≥2 THz) operation. Hence, they can be efficiently used as active material for tunable THz manipulation devices.

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Section: Resultsmentioning

confidence: 98%

Fabrication of Epitaxial W-Doped VO₂ Nanostructured Films for Terahertz Modulation Using the Solvothermal Process

Ivanov

Tatarenko

Gorodetsky

et al. 2021

ACS Appl. Nano Mater.

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“…The heterostructurebased device also displayed moderate stability with an endurance of $10 5 cycles. Further, VO 2 -based nano resistive switches consuming only 4.2 fJ of energy per switching are fabricated by a novel approach [28], whereby VO 2 nanocrystals are embedded in conductive Si tips with an effective lateral size of about 100 nm, after 30mins of synthesis. More importantly, at room temperature, the nanocrystal-based VO 2 devices showed a switching from HRS to LRS at $0.1 V. Additionally, the device showed a high stability of cyclic switching process with endurance longer than 10 11 cycles.…”

Section: (C) Bipolar Switching Characteristics (Black) Of Mos 2 Devic...mentioning

confidence: 99%

Resistive Switching and Hysteresis Phenomena at Nanoscale

Raja¹,

Thamankar²

2023

Electromagnetic Field in Advancing Science and Technology

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Resistive switching at the nanoscale is at the heart of the memristor devices technology. These switching devices have emerged as alternative candidates for the existing memory and data storage technologies. Memristors are also considered to be the fourth pillar of classical electronics; extensive research has been carried out for over three decades to understand the physical processes in these devices. Due to their robust characteristics, resistive switching memory devices have been proposed for neuromorphic computation, in-memory computation, and on-chip data storage. In this chapter, the effects of various external stimuli on the characteristics of resistive switching devices are comprehensively reviewed. The emphasis will be given on 2-dimensional (2D) materials, which are exciting systems owing to superior electrical characteristics combined with their high stability at room temperature. These atomically thin 2D materials possess unique electrical, optical and mechanical properties in a broad spectrum, and open the opportunity for developing novel and more efficient electronic devices. Additionally, resistive switching due to light has also grabbed the attention of optoelectronic engineers and scientists for the advancement of optical switches and photo tuned memristors. The variety of material systems used in the fabrication of memristors is comprehensively discussed.

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“…The further development of magnetic robotics requires a decrease in the size and an increase in the speed of artificially created bioinspired counterparts for gene delivery and therapy [ 174 , 175 , 176 ]. Modern control methods should ensure the imitation of the group behavior of micro-/nanorobots with the «intelligence of a bee swarm» using high-precision magnetic fields [ 177 , 178 , 179 ]. We can expect the development of this topic due to the emergence of more advanced techniques of additive manufacturing, which allows the formation of sophisticated structures on an industrial scale by parallel methods [ 180 , 181 ].…”

Section: Conclusion and Prospects For The Futurementioning

confidence: 99%

Bio-Inspired Micro- and Nanorobotics Driven by Magnetic Field

et al. 2022

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In recent years, there has been explosive growth in the number of investigations devoted to the development and study of biomimetic micro- and nanorobots. The present review is dedicated to novel bioinspired magnetic micro- and nanodevices that can be remotely controlled by an external magnetic field. This approach to actuate micro- and nanorobots is non-invasive and absolutely harmless for living organisms in vivo and cell microsurgery, and is very promising for medicine in the near future. Particular attention has been paid to the latest advances in the rapidly developing field of designing polymer-based flexible and rigid magnetic composites and fabricating structures inspired by living micro-objects and organisms. The physical principles underlying the functioning of hybrid bio-inspired magnetic miniature robots, sensors, and actuators are considered in this review, and key practical applications and challenges are analyzed as well.

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A new approach to the fabrication of VO₂ nanoswitches with ultra-low energy consumption

Abstract: The use of VO2 single crystals with embedded nanotips leads to the 4.2 fJ energy consumption per switching and ensures a high stability and endurance of the nanoswitches.

Cited by 23 publications

References 59 publications

Fabrication of Epitaxial W-Doped VO₂ Nanostructured Films for Terahertz Modulation Using the Solvothermal Process

Fabrication of Epitaxial W-Doped VO₂ Nanostructured Films for Terahertz Modulation Using the Solvothermal Process

Resistive Switching and Hysteresis Phenomena at Nanoscale

Bio-Inspired Micro- and Nanorobotics Driven by Magnetic Field

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A new approach to the fabrication of VO2 nanoswitches with ultra-low energy consumption

Abstract: The use of VO2 single crystals with embedded nanotips leads to the 4.2 fJ energy consumption per switching and ensures a high stability and endurance of the nanoswitches.

Cited by 23 publications

References 59 publications

Fabrication of Epitaxial W-Doped VO2 Nanostructured Films for Terahertz Modulation Using the Solvothermal Process

Fabrication of Epitaxial W-Doped VO2 Nanostructured Films for Terahertz Modulation Using the Solvothermal Process

Resistive Switching and Hysteresis Phenomena at Nanoscale

Bio-Inspired Micro- and Nanorobotics Driven by Magnetic Field

Contact Info

Product

Resources

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A new approach to the fabrication of VO₂ nanoswitches with ultra-low energy consumption

Fabrication of Epitaxial W-Doped VO₂ Nanostructured Films for Terahertz Modulation Using the Solvothermal Process

Fabrication of Epitaxial W-Doped VO₂ Nanostructured Films for Terahertz Modulation Using the Solvothermal Process