Element doping: a marvelous strategy for pioneering the smart applications of VO<sub>2</sub>

Xue, Yibei; Yin, Shu

doi:10.1039/d2nr01864k

Cited by 26 publications

(21 citation statements)

References 290 publications

(584 reference statements)

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“…VO 2 is considered as an ideal energy-saving material since it modulates the sunlight transmittance according to the temperature intelligently. As an intelligent energy-saving coating, light transmittance is required to be elevated . In order to investigate the effect of Zr doping on the optical properties of VO 2 , the absorption and reflectivity spectra of pure and Zr-doped M phase VO 2 were calculated, as shown in Figure .…”

Section: Resultsmentioning

confidence: 99%

“…As an intelligent energy-saving coating, light transmittance is required to be elevated. 65 In order to investigate the effect of Zr doping on the optical properties of VO 2 , the absorption and reflectivity spectra of pure and Zr-doped M phase VO 2 were calculated, as shown in Figure 6. From Figure 6(a), the absorption edge of pure M VO 2 is 0.82 eV, which is consistent with the experimental result.…”

Section: Electronic Structurementioning

confidence: 99%

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Modulation of the Phase Transition Behavior of VO₂ Nanofilms by the Coupling of Zr Doping and Thickness-Dependent Band Gap

Qin

Fan

Qiu

et al. 2022

ACS Appl. Electron. Mater.

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Vanadium dioxide (VO2) is a representative thermochromic material because of its unique first-order metal–insulator transition (MIT) at 68 °C. However, reducing the MIT temperature and clarifying the modulation relationship between Zr doping concentration and the MIT temperature of VO2 are extremely challenging. Here, we combine first-principles calculations and thermodynamic models to modulate the phase transition behavior of VO2 nanofilms by coupling Zr doping and the thickness-dependent band gap. It is observed that Zr doping causes changes in the structural stability and electronic and optical properties of VO2, which lead to a decrease in the MIT temperature. Comparing the calculated results with the experimental results, we clarify that the Zr doping concentration and MIT temperature of VO2 have a linear modulation relationship. These findings provide a concept for modulating the phase transition of VO2 nanomaterials.

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Section: Resultsmentioning

confidence: 99%

Section: Electronic Structurementioning

confidence: 99%

Modulation of the Phase Transition Behavior of VO₂ Nanofilms by the Coupling of Zr Doping and Thickness-Dependent Band Gap

Qin

Fan

Qiu

et al. 2022

ACS Appl. Electron. Mater.

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“…Therefore, it has been accepted that the hydrothermal or solvothermal processes show great potential for improving the functionality of various materials, and offer many applications such as non-toxic pigments, photocatalysts, ultraviolet rays, and infrared shielding materials etc. (Cao et al, 2022;Guo et al, 2010;Hermawan et al, 2021;Taufik et al, 2020;Xue and Yin, 2022;Yin, 2015;Yin and Asakura, 2019). The liquid phase reactions proceed under mild conditions compared to high-temperature methods such as solid-phase reactions, which are environmentally friendly.…”

Section: Introductionmentioning

confidence: 99%

Morphology Control of Transition Metal Oxides by Liquid-Phase Process and Their Material Development

Yin

Hasegawa

2023

KONA

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It is well known that the functionality of inorganic materials strongly depends on the chemical composition, morphology, particle size, crystal facet, etc., which are strongly influenced by the synthesis process. The precise control of the synthesis process is expected to lead to the discovery of new functionality and improvement of the functionality of materials. For example, in a high-temperature solid-phase reaction, it is difficult to control the morphology of nanocrystals. On the other hand, synthesizing functional materials using solution processes, such as hydrothermal and solvothermal reactions, makes it possible to control the morphology and particle size precisely. Usually, the solution process is strongly related to the dissolution reprecipitation mechanism. Therefore, the material composition can be strictly controlled and is suitable for forming fine particles with high crystallinity. In this review paper, the role of the solvent in the solution process, its effect on particle size and morphology of the transition metal oxide, and the related functional improvement will be focused. Furthermore, the direct formation of functional thin films by the solution process and the morphology control by non-oxide materials by the topotactic reaction will also be introduced.

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“…Importantly, the insulator-metal phase transition of VO 2 can be effectively triggered or modulated by various external stimuli such as elemental doping, temperature, electric field, magnetic field, light, and stress. [28][29][30][31][32][33][34][35][36][37] Among them, the temperature, light, and electric field can reversibly modulate the phase transition of VO 2 and be easily manipulated, which is applicable for different functional devices via the phase transition.…”

Section: Introductionmentioning

confidence: 99%

Multiphysical Field Modulated VO₂ Device for Information Encryption

Zhao

et al. 2023

Advanced Science

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In the information explosion society, information security is highly demanded in the practical application, which raised a surge of interest in designing secure and reliable information transmission channels based on the inherent properties of emerging devices. Here, an innovative strategy to achieve the data encryption and reading during the data confidential transmission based on VO2 device is proposed. Owing to the specific insulator‐to‐metal transition property of VO2, the phase transitions between the insulator and metallic states are modulated by the combination of electric field, temperature, and light radiation. These external stimulus‐induced phase diagram is directly associated with the defined VO2 device, which are applicable for control the “0” or “1” electrical logic state for the information encryption. A prototype device is fabricated on an epitaxial VO2 film, which displayed a unique data encryption function with excellent stability. The current study not only demonstrated a multiphysical field‐modulated VO2 device for information encryption, but also supplied some clues for functional devices applications in other correlated oxide materials.

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Element doping: a marvelous strategy for pioneering the smart applications of VO₂

Abstract: Smart materials are leading the future of materials by virtue of the autonomous response behavior to external stimuli, the development and application of which are widely believed to bring a...

Cited by 26 publications

References 290 publications

Modulation of the Phase Transition Behavior of VO₂ Nanofilms by the Coupling of Zr Doping and Thickness-Dependent Band Gap

Modulation of the Phase Transition Behavior of VO₂ Nanofilms by the Coupling of Zr Doping and Thickness-Dependent Band Gap

Morphology Control of Transition Metal Oxides by Liquid-Phase Process and Their Material Development

Multiphysical Field Modulated VO₂ Device for Information Encryption

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Element doping: a marvelous strategy for pioneering the smart applications of VO2

Abstract: Smart materials are leading the future of materials by virtue of the autonomous response behavior to external stimuli, the development and application of which are widely believed to bring a...

Cited by 26 publications

References 290 publications

Modulation of the Phase Transition Behavior of VO2 Nanofilms by the Coupling of Zr Doping and Thickness-Dependent Band Gap

Modulation of the Phase Transition Behavior of VO2 Nanofilms by the Coupling of Zr Doping and Thickness-Dependent Band Gap

Morphology Control of Transition Metal Oxides by Liquid-Phase Process and Their Material Development

Multiphysical Field Modulated VO2 Device for Information Encryption

Contact Info

Product

Resources

About

Element doping: a marvelous strategy for pioneering the smart applications of VO₂

Modulation of the Phase Transition Behavior of VO₂ Nanofilms by the Coupling of Zr Doping and Thickness-Dependent Band Gap

Modulation of the Phase Transition Behavior of VO₂ Nanofilms by the Coupling of Zr Doping and Thickness-Dependent Band Gap

Multiphysical Field Modulated VO₂ Device for Information Encryption